Knowledge

Polycythemia

Source đź“ť

259:, which is a protein produced by the kidneys in response to poor oxygen delivery. As a result, more erythropoeitin is produced to encourage red blood cell production and increase oxygen-carrying capacity. This results in secondary polycythemia, which can be an appropriate response to hypoxic conditions such as chronic smoking, obstructive sleep apnea, and high altitude. Furthermore, certain genetic conditions can impair the body's accurate detection of oxygen levels in the serum, which leads to excess erythropoeitin production even without hypoxia or impaired oxygen delivery to tissues. Alternatively, certain types of cancers, most notably renal cell carcinoma, and medications such as testosterone use can cause inappropriate erythropoeitin production that stimulates red cell production despite adequate oxygen delivery. 43: 764:
rely on additional red cell mass for necessary oxygen delivery, unless the patient is clearly symptomatic and experiences relief from phlebotomy. It is unclear if patients with secondary polycythemia are at elevated thrombotic risk, but aspirin can be considered for patients at elevated cardiovascular risk or for patients with Chuvash polycythemia. The first-line treatment for post-transplant erythrocytosis specificity is
443:. Studies suggest that mean arterial pressure (MAP) only increases when hematocrit levels are 20% over baseline. When hematocrit levels are lower than that percentage, the MAP decreases in response, which may be due, in part, to the increase in viscosity and the decrease in plasma layer width. Furthermore, affected individuals may have other associated conditions alongside 106:("absolute polycythemia") or to a decrease in the volume of plasma ("relative polycythemia"). Absolute polycythemia can be due to genetic mutations in the bone marrow ("primary polycythemia"), physiologic adaptations to one's environment, medications, and/or other health conditions. Laboratory studies such as serum 173:
causes a reduction in plasma volume, resulting in (amongst other changes) a relative increase in red blood cell count. If relative polycythemia is deemed unlikely because the patient has no other signs of hemoconcentration, and has sustained polycythemia without clear loss of body fluids, the patient
133:
Polycythemia is defined as serum hematocrit (Hct) or hemoglobin (HgB) exceeding normal ranges expected for age and sex, typically Hct >49% in healthy adult men and >48% in women, or HgB >16.5 g/dL in men or >16.0 g/dL in women. The definition is different for neonates and varies
763:
For secondary polycythemia, management involves addressing the underlying etiology of increased erythropoeitin production, such as smoking cessation, CPAP for sleep apnea, or removing any EPO-producing tumours. Phlebotomy is not typically recommended for patients with physiologic polycythemia, who
785:
due to the blood being able to store more oxygen. This idea has led to the illegal use of blood doping and transfusions among professional athletes, as well as use of altitude training or elevation training masks to simulate a low-oxygen environment. However, the benefits of altitude training for
1630:
Salazar Vázquez, B. Y., Cabrales, P., Tsai, A. G., Johnson, P. C., & Intaglietta, M. (2008). Lowering of blood pressure by increasing hematocrit with non nitric oxide scavenging red blood cells. American journal of respiratory cell and molecular biology, 38(2), 135–142.
284:(snoring, apneic episodes), and any family history of hematologic conditions or polycythemia. A thorough cardiopulmonary exam including auscultation of the heart and lungs can help evaluate for cardiac shunting or chronic pulmonary disease. An abdominal exam can assess for 680:
Polycythemia is often asymptomatic; patients may not experience any notable symptoms until their red cell count is very high. For patients with significant elevations in hemoglobin or hematocrit (often from polycythemia vera), some non-specific symptoms include:
734:
The prevalence of primary polycythemia (polycythemia vera) was estimated to be approximately 44–57 per 100,000 individuals in the United States. Secondary polycythemia is considered to be more common, but its exact prevalence is unknown. In one study using the
99:, and there is significant overlap in the two findings, but the terms are not the same: polycythemia describes any increase in hematocrit and/or hemoglobin, while erythrocytosis describes an increase specifically in the number of red blood cells in the blood. 462:
Primary familial polycythemia, also known as primary familial and congenital polycythemia (PFCP), exists as a benign hereditary condition, in contrast with the myeloproliferative changes associated with acquired PCV. In many families, PFCP is due to an
279:
The first step to evaluate new polycythemia in any individual is to conduct a detailed history and physical exam. Patients should be asked about smoking history, altitude, medication use, personal bleeding and clotting history, symptoms of
262:
Primary polycythemia, on the other hand, is caused by genetic mutations or defects of the red cell progenitors within the bone marrow, leading to overgrowth and hyperproliferation of red blood cells regardless of erythropoeitin levels.
530:
Genetic – Heritable causes of secondary polycythemia include abnormalities in hemoglobin oxygen release, which results in a greater inherent affinity for oxygen than normal adult hemoglobin and reduces oxygen delivery to
586:
Post-transplant erythrocytosis – About 10–15% of patients after renal transplantation are found to have polycythemia at 24 months after transplantation, which can be associated with increased thrombotic (clotting) risk.
2959: 233:). Hypoxia can be either acute or chronic. Acute hypoxia can occur as a result of perinatal complications. Chronic fetal hypoxia is associated with maternal risk factors such as hypertension, diabetes and smoking. 2320: 2301: 2274: 221:
Polycythemia in newborns is defined as hematocrit > 65%. Significant polycythemia can be associated with blood hyperviscosity, or thickening of the blood. Causes of neonatal polycythemia include:
755:
for management of primary polycythemia, which involves reducing thrombotic risk, symptom amelioration and monitoring for further hematologic complications. Treatment can include phlebotomy, aspirin, and
847: 830: 3650: 2952: 239:: delayed cord clamping and the stripping of the umbilical cord towards the baby can cause the residual blood in the cord/placenta to enter fetal circulation, which can increase blood volume. 312:(CBC). The CBC is often repeated to evaluate for persistent polycythemia. If an etiology of polycythemia is unclear from history or physical, additional laboratory evaluation might include: 266:
Increased hematocrit and red cell mass with polycythemia increases the viscosity of blood, leading to impaired blood flow and contributing to an increased risk of clotting (thrombosis).
956:
McMullin MF, Bareford D, Campbell P, Green AR, Harrison C, Hunt B, et al. (July 2005). "Guidelines for the diagnosis, investigation and management of polycythaemia/erythrocytosis".
2945: 117:
Mild polycythemia on its own is often asymptomatic. Treatment for polycythemia varies, and typically involves treating its underlying cause. Treatment of primary polycythemia (see
508:). Many athletes train at high altitude to take advantage of this effect, which can be considered a legal form of blood doping, although the efficacy of this strategy is unclear. 425:
are also produced. A hallmark of polycythemia vera is an elevated hematocrit, with Hct > 55% seen in 83% of cases. A somatic (non-hereditary) mutation (V617F) in the
1468:
Ang SO, Chen H, Hirota K, Gordeuk VR, Jelinek J, Guan Y, et al. (December 2002). "Disruption of oxygen homeostasis underlies congenital Chuvash polycythemia".
125:, antiplatelet therapy to reduce risk of blood clots, and additional cytoreductive therapy to reduce the number of red blood cells produced in the bone marrow. 153:
is not a true increase in the number of red blood cells or hemoglobin in the blood, but rather an elevated laboratory finding caused by reduced blood plasma (
786:
athletes to improve sea-level performance are not universally accepted, with one reason being athletes at altitude might exert less power during training.
739:
dataset, the prevalence of unexplained erythrocytosis is 35.1 per 100,000, and was higher among males and among individuals between ages 50–59 and 60–69.
165:, such as through burns, dehydration, and stress. A specific type of relative polycythemia is Gaisböck syndrome. In this syndrome, primarily occurring in 511:
Hypoxic disease-associated – for example, in cyanotic heart disease where blood oxygen levels are reduced significantly; in hypoxic lung disease such as
208:
Alternatively, additional red blood cells may have been received through another process—for example, being over-transfused (either accidentally or, as
147:
Different diseases or conditions can cause polycythemia in adults. These processes are discussed in more detail in their respective sections below.
736: 632:
in the presence of oxygen. Clusters of patients with Chuvash erythrocytosis have been found in other populations, such as on the Italian island of
2173:
Tremblay D, Alpert N, Taioli E, Mascarenhas J (August 2021). "Prevalence of unexplained erythrocytosis and thrombocytosis - an NHANES analysis".
255:
The pathophysiology of polycythemia varies based on its cause. The production of red blood cells (or erythropoeisis) in the body is regulated by
3333: 2566: 205:, medications, other genetic mutations that impact the body's ability to transport or detect oxygen, or, rarely because of certain cancers. 3348: 3338: 2771: 583:
Blood doping – Athletes who take erythropoietin-stimulating agents or receive blood transfusions to increase their red blood cell mass.
2922: 2424: 2874: 2696: 1908: 535:
Conditions where the secondary polycythemia is not caused by physiologic adaptation, and occurs irrespective of body needs include:
2766: 1781:
Wajcman H, Galactéros F (2005). "Hemoglobins with high oxygen affinity leading to erythrocytosis. New variants and new concepts".
413:(PCV) (a.k.a. polycythemia rubra vera (PRV)) occurs when excess red blood cells are produced as a result of an abnormality of the 2706: 2155: 3328: 569:
use – people whose testosterone levels are high, including athletes who abuse steroids, people on testosterone replacement for
376: 369: 1714: 1601: 114:
might be helpful to clarify the cause of polycythemia if the physical exam and patient history do not reveal a likely cause.
3231: 2583: 852: 835: 1232:
Stefanini M, Urbas JV, Urbas JE (July 1978). "Gaisböck's syndrome: its hematologic, biochemical and hormonal parameters".
2738: 2108:"Autosomal dominant erythrocytosis and pulmonary arterial hypertension associated with an activating HIF2 alpha mutation" 636:, located in the Bay of Naples. Patients with Chuvash erythrocytosis experience a significantly elevated risk of events. 3236: 3645: 3014: 2747: 2718: 243: 1514:
Shahani S, Braga-Basaria M, Maggio M, Basaria S (September 2009). "Androgens and erythropoiesis: past and present".
3557: 3532: 3323: 2778: 2650: 431:
gene, also present in other myeloproliferative disorders, is found in 95% of cases. Symptoms include headaches and
3624: 3574: 3142: 2937: 769: 1418:"Von Hippel-Lindau-dependent polycythemia is endemic on the island of Ischia: identification of a novel cluster" 2711: 2417: 1959:"A family with erythrocytosis establishes a role for prolyl hydroxylase domain protein 2 in oxygen homeostasis" 17: 2732: 2640: 3316: 2805: 2757: 548: 1292:
Lee G, Arcasoy MO (June 2015). "The clinical and laboratory evaluation of the patient with erythrocytosis".
3552: 3475: 3293: 3241: 2662: 1105:"The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia" 229:
Poor oxygen delivery (hypoxia) in utero resulting in compensatory increased production of red blood cells (
3052: 3542: 3447: 3384: 2814: 2688: 2552: 2507: 1557:
Kwaan HC, Wang J (October 2003). "Hyperviscosity in polycythemia vera and other red cell abnormalities".
1375: 577: 2390: 3389: 3379: 3270: 3265: 2752: 2578: 406: 192: 3419: 3128: 3124: 3084: 2679: 2669: 2657: 2410: 1416:
Perrotta S, Nobili B, Ferraro M, Migliaccio C, Borriello A, Cucciolla V, et al. (January 2006).
696: 629: 597: 520: 3655: 3485: 3406: 2645: 2339: 600:, leading to increased erythropoietin production, have been shown to cause secondary polycythemia: 496:
Secondary polycythemia in which the production of erythropoietin increases appropriately is called
1734:"Physiological implications of altitude training for endurance performance at sea level: a review" 191:
is the overproduction of red blood cells due to a primary process in the bone marrow (a so-called
3581: 3547: 3152: 3072: 3062: 3009: 2850: 2701: 807: 471: 382: 365: 489:
Secondary polycythemia is caused by either natural or artificial increases in the production of
3462: 3280: 3189: 3172: 2841: 2502: 2010:"A novel erythrocytosis-associated PHD2 mutation suggests the location of a HIF binding groove" 668: 2287: 2283: 811: 618:
in Russia. Chuvash erythrocytosis is associated with homozygosity for a C598T mutation in the
3396: 3104: 2821: 2588: 2295: 2291: 619: 560: 1103:
Arber DA, Orazi A, Hasserjian R, Thiele J, Borowitz MJ, Le Beau MM, et al. (May 2016).
504:
Altitude related – Polycythemia can be a normal adaptation to living at high altitudes (see
474:
gene. PFCP can cause an increase of up to 50% in the oxygen-carrying capacity of the blood;
3434: 3424: 3226: 3182: 2831: 2826: 2634: 2520: 1957:
Percy MJ, Zhao Q, Flores A, Harrison C, Lappin TR, Maxwell PH, et al. (January 2006).
540: 309: 8: 3619: 3602: 3452: 3308: 3218: 2880: 2625: 2433: 2324: 1329:"The Placenta in Twin-to-Twin Transfusion Syndrome and Twin Anemia Polycythemia Sequence" 611: 3537: 3493: 3470: 3360: 3137: 2912: 2885: 2490: 2198: 2137: 2083: 2058: 2034: 2009: 1985: 1958: 1939: 1806: 1758: 1733: 1670: 1645: 1539: 1493: 1447: 1356: 1257: 1134: 1034: 1009: 981: 922: 897: 719: 652: 464: 2333: 2329: 519:; conditions that reduce blood flow to the kidney e.g. renal artery stenosis. Chronic 478: 3370: 3288: 3258: 3199: 3177: 2994: 2917: 2907: 2866: 2861: 2856: 2797: 2629: 2618: 2608: 2542: 2525: 2516: 2498: 2460: 2350: 2237: 2229: 2218:"Improving athletic performance: is altitude residence or altitude training helpful?" 2202: 2190: 2129: 2088: 2039: 1990: 1931: 1882: 1861:"Prevalence of blood doping in samples collected from elite track and field athletes" 1841: 1837: 1798: 1763: 1715:"Malcolm Gladwell: 'If my books appear oversimplified, then you shouldn't read them'" 1675: 1597: 1574: 1531: 1485: 1439: 1395: 1348: 1328: 1309: 1249: 1214: 1168: 1126: 1085: 1039: 973: 969: 927: 752: 524: 505: 432: 410: 400: 202: 118: 55: 2141: 2057:
Percy MJ, Furlow PW, Lucas GS, Li X, Lappin TR, McMullin MF, Lee FS (January 2008).
1810: 1543: 1497: 1451: 1261: 1197:
Sarkar S, Rosenkrantz TS (August 2008). "Neonatal polycythemia and hyperviscosity".
1138: 985: 50:
Diagram illustrating normal composition of blood compared to anemia and polycythemia
3612: 3439: 3099: 3040: 3004: 2613: 2598: 2537: 2379: 2182: 2119: 2078: 2070: 2029: 2021: 1980: 1970: 1943: 1923: 1872: 1833: 1790: 1753: 1745: 1665: 1657: 1566: 1523: 1477: 1429: 1387: 1360: 1340: 1301: 1241: 1206: 1116: 1075: 1029: 1021: 965: 917: 909: 757: 596:
Rare inherited mutations in three genes which all result in increased stability of
566: 552: 418: 2967: 2186: 1010:"JAK2 unmutated erythrocytosis: current diagnostic approach and therapeutic views" 875: 481:
had PFCP, which is speculated to have given him an advantage in endurance events.
3569: 3355: 3247: 3167: 2792: 2344: 2124: 2107: 2025: 1877: 1860: 1824:
Kralovics R, Prchal JT (February 2000). "Congenital and inherited polycythemia".
1121: 1104: 782: 712: 692: 556: 320: 289: 111: 3194: 2809: 2437: 2355: 2008:
Percy MJ, Furlow PW, Beer PA, Lappin TR, McMullin MF, Lee FS (September 2007).
1963:
Proceedings of the National Academy of Sciences of the United States of America
1434: 1417: 1305: 1245: 1210: 1160: 1025: 642: 605: 490: 427: 343: 339: 332: 325: 256: 230: 201:
is the most common cause of polycythemia. It occurs in reaction to chronically
107: 103: 84: 80: 2402: 2314: 2310: 1661: 3639: 3133: 2973: 2233: 1391: 1080: 1063: 765: 293: 1975: 1859:
Sottas PE, Robinson N, Fischetto G, Dollé G, Alonso JM, Saugy M (May 2011).
42: 3253: 3094: 2241: 2217: 2194: 2133: 2092: 2043: 1994: 1935: 1886: 1845: 1802: 1693: 1679: 1632: 1578: 1535: 1489: 1443: 1399: 1352: 1313: 1218: 1172: 1130: 1089: 1043: 977: 931: 570: 444: 440: 436: 285: 209: 170: 102:
Polycythemia has many causes. It can describe an increase in the number of
95:
concentration are increased in the blood. Polycythemia is sometimes called
2059:"A gain-of-function mutation in the HIF2A gene in familial erythrocytosis" 1767: 1749: 3597: 3499: 3365: 3067: 2603: 2561: 2074: 1570: 1253: 870: 574: 544: 516: 414: 356: 281: 158: 154: 1344: 913: 3607: 3564: 3505: 3343: 2572: 1527: 456: 448: 162: 122: 92: 76: 60: 2266: 1927: 1794: 3510: 2969: 2374: 2106:
Gale DP, Harten SK, Reid CD, Tuddenham EG, Maxwell PH (August 2008).
801: 615: 372:(VHL) genetic testing, if high suspicion for familial erythrocytosis 288:, which can be seen in polycythemia vera. Examination of digits for 3303: 2385: 1481: 688: 452: 422: 297: 195:). These can be familial or congenital, or acquired later in life. 3026: 1513: 500:
Conditions which may result in physiologic polycythemia include:
166: 896:
Mithoowani S, Laureano M, Crowther MA, Hillis CM (August 2020).
895: 655:
erythrocytosis and increased hypoxia-inducible factors activity.
3030: 2481: 2305: 2278: 2172: 1415: 795: 633: 3651:
Haemorrhagic and haematological disorders of fetus and newborn
3414: 3161: 955: 747:
The management of polycythemia varies based on its etiology:
663: 647: 475: 88: 1858: 1007: 1698: 512: 1102: 1008:
Gangat N, Szuber N, Pardanani A, Tefferi A (August 2021).
760:
or cytoreductive medications based on risk stratification.
667:
are associated with autosomal dominant erythrocytosis and
435:, and signs on physical examination include an abnormally 708:
Pain in abdomen from enlarged spleen in polycythemia vera
624: 409:
affecting red blood cell precursors in the bone marrow.
27:
Laboratory diagnosis of high hemoglobin content in blood
2105: 1956: 1906: 1643: 781:
Polycythemia is theorized to increased performance in
2007: 1694:"Polycythemia, Primary Familial snd Congenital; PFCP" 2256: 1907:
Keohane C, McMullin MF, Harrison C (November 2013).
1467: 614:
form of erythrocytosis endemic in patients from the
161:). Relative polycythemia is often caused by loss of 1596:(7th ed.). Lippencott Williams & Wilkins. 1231: 776: 523:(which can be present in heavy smokers) and rarely 2056: 1644:Tefferi A, Vannucchi AM, Barbui T (January 2018). 1158: 493:, hence an increased production of erythrocytes. 2215: 1780: 1196: 379:to evaluate for high-affinity hemoglobin variants 3637: 2216:Fulco, C. S.; Rock, P. B.; Cymerman, A. (2000). 1909:"The diagnosis and management of erythrocytosis" 898:"Investigation and management of erythrocytosis" 308:Polycythemia is often initially identified on a 2432: 1823: 1167:. Treasure Island (FL): StatPearls Publishing. 766:angiotensin-converting enzyme (ACE) inhibitors 2953: 2418: 242:The recipient twin in a pregnancy undergoing 2567:Glucose-6-phosphate dehydrogenase deficiency 1852: 1731: 1646:"Polycythemia vera treatment algorithm 2018" 725:Numbness or tingling in different body parts 274: 2451: 2222:Aviation, Space, and Environmental Medicine 216: 2960: 2946: 2923:Hereditary persistence of fetal hemoglobin 2425: 2411: 1291: 718:Itchiness, especially after a hot shower ( 628:), which is needed for the destruction of 41: 2875:Mean corpuscular hemoglobin concentration 2697:Warm antibody autoimmune hemolytic anemia 2123: 2082: 2033: 1984: 1974: 1876: 1757: 1669: 1618:Current Medical Diagnosis & Treatment 1556: 1516:Journal of Endocrinological Investigation 1433: 1373: 1326: 1199:Seminars in Fetal & Neonatal Medicine 1120: 1079: 1033: 921: 591: 484: 142: 137: 1712: 1633:https://doi.org/10.1165/rcmb.2007-0081OC 551:, and endocrine abnormalities including 389: 303: 1620:. McGraw Hill Lange. 2008. p. 438. 1591: 1376:"Regulation of the erythropoietin gene" 1159:Pillai AA, Fazal S, Babiker HM (2022). 394: 375:Hemoglobin (globin-gene) sequencing or 316:Blood smear to evaluate cell morphology 75:) is a laboratory finding in which the 14: 3638: 1732:Bailey DM, Davies B (September 1997). 1509: 1507: 1061: 645:for loss-of-function mutations of the 377:high-performance liquid chromatography 319:Iron panel to evaluate for concurrent 2941: 2480: 2406: 1902: 1900: 1898: 1896: 1559:Seminars in Thrombosis and Hemostasis 1463: 1461: 1411: 1409: 1294:European Journal of Internal Medicine 1287: 1285: 1283: 1281: 1279: 1277: 1275: 1273: 1271: 1192: 1190: 1188: 1003: 1001: 999: 997: 995: 685:A ruddy (red) complexion, or plethora 385:might be considered in specific cases 362:Abdominal imaging, such as ultrasound 350: 300:can help assess for chronic hypoxia. 3232:Infant respiratory distress syndrome 2584:triosephosphate isomerase deficiency 1374:Ebert BL, Bunn HF (September 1999). 1154: 1152: 1150: 1148: 1057: 1055: 1053: 951: 949: 947: 945: 943: 941: 891: 889: 887: 885: 883: 865: 863: 861: 798:, a decrease in red blood cell count 2739:paroxysmal nocturnal hemoglobinuria 2707:Donath–Landsteiner hemolytic anemia 2687: 2063:The New England Journal of Medicine 1504: 346:tests) or oxygen dissociation tests 24: 3237:Transient tachypnea of the newborn 1893: 1738:British Journal of Sports Medicine 1594:Interpretation of Diagnostic Tests 1458: 1406: 1268: 1185: 992: 250: 184:can be split into two categories: 25: 3667: 3015:Twin-to-twin transfusion syndrome 2748:Microangiopathic hemolytic anemia 2719:Mixed autoimmune hemolytic anemia 2252: 1145: 1050: 938: 880: 858: 359:if high suspicion for sleep apnea 244:twin-to-twin transfusion syndrome 3533:Vertically transmitted infection 2779:Hemolytic disease of the newborn 1838:10.1097/00008480-200002000-00006 1333:Twin Research and Human Genetics 970:10.1111/j.1365-2141.2005.05535.x 804:, a decrease in blood cell count 777:Relation to athletic performance 527:can also impair oxygen delivery. 3625:Fetal Alcohol Spectrum Disorder 3575:Group B streptococcal infection 3143:Intrauterine growth restriction 2209: 2166: 2148: 2099: 2050: 2001: 1950: 1817: 1774: 1725: 1706: 1686: 1637: 1624: 1610: 1585: 1550: 1367: 1320: 1225: 1064:"How I treat polycythemia vera" 729: 338:Oxygen saturation (usually via 2968:Conditions originating in the 2712:Paroxysmal cold hemoglobinuria 1096: 958:British Journal of Haematology 841: 824: 610:or Chuvash polycythemia is an 459:is the mainstay of treatment. 13: 1: 3317:Vitamin K deficiency bleeding 2187:10.1080/10428194.2021.1888377 1826:Current Opinion in Pediatrics 1327:Couck I, Lewi L (June 2016). 817: 770:angiotensin receptor blockers 742: 661:Gain-of-function mutations in 269: 128: 3476:Periventricular leukomalacia 3294:Persistent fetal circulation 3242:Meconium aspiration syndrome 2663:Southeast Asian ovalocytosis 2651:Minkowski–Chauffard syndrome 2125:10.1182/blood-2008-04-153718 2026:10.1182/blood-2007-04-084434 1878:10.1373/clinchem.2010.156067 1122:10.1182/blood-2016-03-643544 853:Dorland's Medical Dictionary 836:Dorland's Medical Dictionary 705:Unusual bleeding, nosebleeds 7: 3385:Intraventricular hemorrhage 789: 691:, transient blurry vision ( 675: 578:hormone replacement therapy 407:myeloproliferative diseases 10: 3672: 3390:Germinal matrix hemorrhage 3380:Velamentous cord insertion 3271:Bronchopulmonary dysplasia 2772:Drug-induced nonautoimmune 2753:Thrombotic microangiopathy 2579:pyruvate kinase deficiency 1713:Burkeman O (29 Sep 2013). 1435:10.1182/blood-2005-06-2422 1306:10.1016/j.ejim.2015.03.007 1246:10.1177/000331977802900703 1211:10.1016/j.siny.2008.02.003 1026:10.1038/s41375-021-01290-6 451:. Transformation to acute 405:Primary polycythemias are 398: 193:myeloproliferative disease 3590: 3525: 3484: 3461: 3433: 3420:Necrotizing enterocolitis 3405: 3302: 3279: 3217: 3210: 3151: 3129:Large for gestational age 3125:Small for gestational age 3117: 3081: 3049: 3023: 2991: 2980: 2900: 2840: 2791: 2758:Hemolytic–uremic syndrome 2678: 2670:Hereditary stomatocytosis 2658:Hereditary elliptocytosis 2551: 2536: 2489: 2473: 2444: 2365: 2260: 1662:10.1038/s41408-017-0042-7 697:transient ischemic attack 651:gene are associated with 630:hypoxia-inducible factors 598:hypoxia-inducible factors 549:Von Hippel–Lindau disease 521:carbon monoxide poisoning 515:; in chronic obstructive 498:physiologic polycythemia. 275:History and physical exam 54: 49: 40: 35: 3646:Red blood cell disorders 2646:Hereditary spherocytosis 1392:10.1182/blood.V94.6.1864 1081:10.1182/blood.2018834044 871:MedlinePlus Encyclopedia 711:Pain in hands and feet ( 449:formation of blood clots 237:Umbilical cord stripping 217:Polycythemia in neonates 3582:Neonatal conjunctivitis 3073:Single umbilical artery 3063:Umbilical cord prolapse 3010:Placental insufficiency 2983:complicating pregnancy, 2851:Mean corpuscular volume 2815:Diamond–Blackfan anemia 2767:Drug-induced autoimmune 2702:Cold agglutinin disease 2508:Plummer–Vinson syndrome 2175:Leukemia & Lymphoma 1976:10.1073/pnas.0508423103 1062:Spivak JL (July 2019). 848:"Relative polycythemia" 831:"Absolute polycythemia" 808:Capillary leak syndrome 472:erythropoietin receptor 366:Erythropoietin receptor 3558:ureaplasma urealyticum 3266:Wilson–Mikity syndrome 3190:Brachial plexus injury 2503:Iron-deficiency anemia 669:pulmonary hypertension 592:Altered oxygen sensing 485:Secondary polycythemia 246:can have polycythemia. 199:Secondary polycythemia 178:or true polycythemia. 143:Polycythemia in adults 138:Differential diagnoses 3506:Congenital hypertonia 3397:Anemia of prematurity 3105:Shoulder presentation 2822:Pure red cell aplasia 2589:hexokinase deficiency 1750:10.1136/bjsm.31.3.183 659:HIF2α erythrocytosis: 390:Absolute polycythemia 304:Laboratory evaluation 182:Absolute polycythemia 151:Relative polycythemia 3511:Congenital hypotonia 3425:Meconium peritonitis 3227:Intrauterine hypoxia 3183:Subgaleal hemorrhage 2827:Sideroblastic anemia 2635:Hemoglobin C disease 2521:Megaloblastic anemia 2075:10.1056/NEJMoa073123 1650:Blood Cancer Journal 1571:10.1055/s-2003-44552 695:), other signs of a 640:PHD2 erythrocytosis: 541:Renal cell carcinoma 395:Primary polycythemia 310:complete blood count 189:Primary polycythemia 134:by age in children. 3620:Neonatal withdrawal 3603:Perinatal mortality 3453:Sclerema neonatorum 3309:hematologic disease 2626:Sickle cell disease 2156:"Polycythemia Vera" 1592:Wallach JB (2007). 1345:10.1017/thg.2016.29 914:10.1503/cmaj.191587 810:, another cause of 612:autosomal recessive 445:high blood pressure 3553:mycoplasma hominis 3538:Neonatal infection 3494:Gray baby syndrome 3471:Perinatal asphyxia 3361:Hyperbilirubinemia 3138:Postterm pregnancy 2985:labour or delivery 2913:Sulfhemoglobinemia 2366:External resources 1922:(nov18 1): f6667. 1865:Clinical Chemistry 1719:Guardian newspaper 1528:10.1007/BF03345745 720:aquagenic pruritis 702:Dizziness, fatigue 653:autosomal dominant 561:Cushing's syndrome 465:autosomal dominant 383:Bone marrow biopsy 351:Additional testing 3633: 3632: 3521: 3520: 3371:Neonatal jaundice 3289:Pneumopericardium 3259:Pneumomediastinum 3200:Klumpke paralysis 3178:Caput succedaneum 3113: 3112: 2981:Maternal factors 2935: 2934: 2931: 2930: 2918:Reticulocytopenia 2908:Methemoglobinemia 2896: 2895: 2787: 2786: 2727: 2726: 2526:Pernicious anemia 2469: 2468: 2461:Polycythemia vera 2400: 2399: 1928:10.1136/bmj.f6667 1795:10.1081/HEM-58571 1603:978-0-7817-3055-6 1115:(20): 2391–2405. 908:(32): E913–E918. 876:Polycythemia vera 812:hemoconcentration 753:polycythemia vera 620:von Hippel–Lindau 525:methemoglobinemia 506:altitude sickness 419:white blood cells 411:Polycythemia vera 401:Polycythemia vera 370:von Hippel–Lindau 203:low oxygen levels 119:polycythemia vera 81:volume percentage 66: 65: 30:Medical condition 16:(Redirected from 3663: 3613:Infant mortality 3448:Erythema toxicum 3440:thermoregulation 3407:Gastrointestinal 3215: 3214: 3211:Affected systems 3088: 3056: 3041:Chorioamnionitis 3034: 3005:Placenta praevia 2998: 2989: 2988: 2962: 2955: 2948: 2939: 2938: 2685: 2684: 2599:hemoglobinopathy 2549: 2548: 2487: 2486: 2478: 2477: 2449: 2448: 2427: 2420: 2413: 2404: 2403: 2258: 2257: 2246: 2245: 2213: 2207: 2206: 2181:(8): 2030–2033. 2170: 2164: 2163: 2152: 2146: 2145: 2127: 2103: 2097: 2096: 2086: 2054: 2048: 2047: 2037: 2020:(6): 2193–2196. 2005: 1999: 1998: 1988: 1978: 1954: 1948: 1947: 1913: 1904: 1891: 1890: 1880: 1856: 1850: 1849: 1821: 1815: 1814: 1778: 1772: 1771: 1761: 1729: 1723: 1722: 1710: 1704: 1703: 1690: 1684: 1683: 1673: 1641: 1635: 1628: 1622: 1621: 1614: 1608: 1607: 1589: 1583: 1582: 1554: 1548: 1547: 1511: 1502: 1501: 1465: 1456: 1455: 1437: 1413: 1404: 1403: 1386:(6): 1864–1877. 1371: 1365: 1364: 1324: 1318: 1317: 1289: 1266: 1265: 1229: 1223: 1222: 1194: 1183: 1182: 1180: 1179: 1156: 1143: 1142: 1124: 1100: 1094: 1093: 1083: 1059: 1048: 1047: 1037: 1020:(8): 2166–2181. 1005: 990: 989: 953: 936: 935: 925: 893: 878: 867: 856: 845: 839: 828: 783:endurance sports 758:myelosuppressive 616:Chuvash Republic 567:Anabolic steroid 553:pheochromocytoma 467:mutation in the 417:. Often, excess 328:mutation testing 212:, deliberately). 121:) could involve 45: 33: 32: 21: 3671: 3670: 3666: 3665: 3664: 3662: 3661: 3660: 3656:Hematopathology 3636: 3635: 3634: 3629: 3586: 3570:Neonatal sepsis 3517: 3486:Musculoskeletal 3480: 3457: 3438: 3429: 3401: 3356:Hydrops fetalis 3307: 3298: 3275: 3248:Pleural disease 3206: 3168:Cephalohematoma 3147: 3109: 3082: 3077: 3050: 3045: 3024: 3019: 2992: 2984: 2982: 2976: 2966: 2936: 2927: 2892: 2836: 2795: 2783: 2723: 2674: 2540: 2532: 2465: 2440: 2438:red blood cells 2431: 2401: 2396: 2395: 2361: 2360: 2269: 2255: 2250: 2249: 2214: 2210: 2171: 2167: 2154: 2153: 2149: 2104: 2100: 2055: 2051: 2006: 2002: 1955: 1951: 1911: 1905: 1894: 1857: 1853: 1822: 1818: 1779: 1775: 1730: 1726: 1711: 1707: 1692: 1691: 1687: 1642: 1638: 1629: 1625: 1616: 1615: 1611: 1604: 1590: 1586: 1555: 1551: 1512: 1505: 1470:Nature Genetics 1466: 1459: 1414: 1407: 1372: 1368: 1325: 1321: 1290: 1269: 1230: 1226: 1195: 1186: 1177: 1175: 1157: 1146: 1101: 1097: 1060: 1051: 1006: 993: 954: 939: 894: 881: 868: 859: 846: 842: 829: 825: 820: 792: 779: 745: 732: 713:erythromelalgia 699:(TIA) or stroke 693:amaurosis fugax 678: 594: 557:adrenal adenoma 487: 479:Eero Mäntyranta 437:enlarged spleen 403: 397: 392: 353: 321:iron deficiency 306: 290:erythromelalgia 277: 272: 253: 251:Pathophysiology 219: 145: 140: 131: 112:genetic testing 104:red blood cells 85:red blood cells 71:(also known as 31: 28: 23: 22: 15: 12: 11: 5: 3669: 3659: 3658: 3653: 3648: 3631: 3630: 3628: 3627: 3622: 3617: 3616: 3615: 3610: 3600: 3594: 3592: 3588: 3587: 3585: 3584: 3579: 3578: 3577: 3567: 3562: 3561: 3560: 3555: 3550: 3548:herpes simplex 3545: 3535: 3529: 3527: 3523: 3522: 3519: 3518: 3516: 3515: 3514: 3513: 3508: 3496: 3490: 3488: 3482: 3481: 3479: 3478: 3473: 3467: 3465: 3463:Nervous system 3459: 3458: 3456: 3455: 3450: 3444: 3442: 3431: 3430: 3428: 3427: 3422: 3417: 3411: 3409: 3403: 3402: 3400: 3399: 3394: 3393: 3392: 3382: 3376: 3375: 3374: 3373: 3368: 3358: 3353: 3352: 3351: 3346: 3341: 3336: 3331: 3320: 3319: 3313: 3311: 3300: 3299: 3297: 3296: 3291: 3285: 3283: 3281:Cardiovascular 3277: 3276: 3274: 3273: 3268: 3263: 3262: 3261: 3256: 3244: 3239: 3234: 3229: 3223: 3221: 3212: 3208: 3207: 3205: 3204: 3203: 3202: 3197: 3187: 3186: 3185: 3180: 3175: 3170: 3157: 3155: 3149: 3148: 3146: 3145: 3140: 3131: 3121: 3119: 3115: 3114: 3111: 3110: 3108: 3107: 3102: 3097: 3091: 3089: 3079: 3078: 3076: 3075: 3070: 3065: 3059: 3057: 3053:umbilical cord 3047: 3046: 3044: 3043: 3037: 3035: 3021: 3020: 3018: 3017: 3012: 3007: 3001: 2999: 2986: 2978: 2977: 2965: 2964: 2957: 2950: 2942: 2933: 2932: 2929: 2928: 2926: 2925: 2920: 2915: 2910: 2904: 2902: 2898: 2897: 2894: 2893: 2891: 2890: 2889: 2888: 2883: 2871: 2870: 2869: 2864: 2859: 2846: 2844: 2838: 2837: 2835: 2834: 2829: 2824: 2817: 2812: 2810:Fanconi anemia 2803: 2801: 2789: 2788: 2785: 2784: 2782: 2781: 2775: 2774: 2769: 2763: 2762: 2761: 2760: 2750: 2744: 2743: 2742: 2741: 2728: 2725: 2724: 2722: 2721: 2716: 2715: 2714: 2704: 2699: 2693: 2691: 2682: 2676: 2675: 2673: 2672: 2667: 2666: 2665: 2655: 2654: 2653: 2637: 2632: 2623: 2622: 2621: 2616: 2611: 2594: 2593: 2592: 2591: 2586: 2581: 2569: 2557: 2555: 2546: 2534: 2533: 2531: 2530: 2529: 2528: 2513: 2512: 2511: 2510: 2495: 2493: 2484: 2475: 2471: 2470: 2467: 2466: 2464: 2463: 2457: 2455: 2446: 2442: 2441: 2430: 2429: 2422: 2415: 2407: 2398: 2397: 2394: 2393: 2382: 2370: 2369: 2367: 2363: 2362: 2359: 2358: 2347: 2336: 2317: 2298: 2270: 2265: 2264: 2262: 2261:Classification 2254: 2253:External links 2251: 2248: 2247: 2228:(2): 162–171. 2208: 2165: 2147: 2118:(3): 919–921. 2098: 2069:(2): 162–168. 2049: 2000: 1969:(3): 654–659. 1949: 1892: 1871:(5): 762–769. 1851: 1816: 1773: 1744:(3): 183–190. 1724: 1705: 1685: 1636: 1623: 1609: 1602: 1584: 1565:(5): 451–458. 1549: 1522:(8): 704–716. 1503: 1482:10.1038/ng1019 1476:(4): 614–621. 1457: 1428:(2): 514–519. 1405: 1366: 1339:(3): 184–190. 1319: 1300:(5): 297–302. 1267: 1240:(7): 520–533. 1224: 1205:(4): 248–255. 1184: 1161:"Polycythemia" 1144: 1095: 1074:(4): 341–352. 1049: 991: 964:(2): 174–195. 937: 879: 857: 840: 822: 821: 819: 816: 815: 814: 805: 799: 791: 788: 778: 775: 774: 773: 761: 744: 741: 731: 728: 727: 726: 723: 716: 709: 706: 703: 700: 686: 677: 674: 673: 672: 656: 643:Heterozygosity 637: 608:erythrocytosis 593: 590: 589: 588: 584: 581: 564: 533: 532: 528: 509: 491:erythropoietin 486: 483: 399:Main article: 396: 393: 391: 388: 387: 386: 380: 373: 363: 360: 352: 349: 348: 347: 340:pulse oximetry 336: 333:erythropoeitin 329: 323: 317: 305: 302: 276: 273: 271: 268: 257:erythropoietin 252: 249: 248: 247: 240: 234: 231:erythropoeisis 218: 215: 214: 213: 206: 196: 144: 141: 139: 136: 130: 127: 108:erythropoeitin 97:erythrocytosis 64: 63: 58: 52: 51: 47: 46: 38: 37: 29: 26: 18:Erythrocytosis 9: 6: 4: 3: 2: 3668: 3657: 3654: 3652: 3649: 3647: 3644: 3643: 3641: 3626: 3623: 3621: 3618: 3614: 3611: 3609: 3606: 3605: 3604: 3601: 3599: 3596: 3595: 3593: 3589: 3583: 3580: 3576: 3573: 3572: 3571: 3568: 3566: 3563: 3559: 3556: 3554: 3551: 3549: 3546: 3544: 3541: 3540: 3539: 3536: 3534: 3531: 3530: 3528: 3524: 3512: 3509: 3507: 3504: 3503: 3502: 3501: 3497: 3495: 3492: 3491: 3489: 3487: 3483: 3477: 3474: 3472: 3469: 3468: 3466: 3464: 3460: 3454: 3451: 3449: 3446: 3445: 3443: 3441: 3436: 3432: 3426: 3423: 3421: 3418: 3416: 3413: 3412: 3410: 3408: 3404: 3398: 3395: 3391: 3388: 3387: 3386: 3383: 3381: 3378: 3377: 3372: 3369: 3367: 3364: 3363: 3362: 3359: 3357: 3354: 3350: 3347: 3345: 3342: 3340: 3337: 3335: 3332: 3330: 3327: 3326: 3325: 3322: 3321: 3318: 3315: 3314: 3312: 3310: 3305: 3301: 3295: 3292: 3290: 3287: 3286: 3284: 3282: 3278: 3272: 3269: 3267: 3264: 3260: 3257: 3255: 3252: 3251: 3250: 3249: 3245: 3243: 3240: 3238: 3235: 3233: 3230: 3228: 3225: 3224: 3222: 3220: 3216: 3213: 3209: 3201: 3198: 3196: 3193: 3192: 3191: 3188: 3184: 3181: 3179: 3176: 3174: 3171: 3169: 3166: 3165: 3164: 3163: 3159: 3158: 3156: 3154: 3150: 3144: 3141: 3139: 3135: 3134:Preterm birth 3132: 3130: 3126: 3123: 3122: 3120: 3116: 3106: 3103: 3101: 3098: 3096: 3093: 3092: 3090: 3087: 3086: 3080: 3074: 3071: 3069: 3066: 3064: 3061: 3060: 3058: 3055: 3054: 3048: 3042: 3039: 3038: 3036: 3033: 3032: 3028: 3022: 3016: 3013: 3011: 3008: 3006: 3003: 3002: 3000: 2997: 2996: 2990: 2987: 2979: 2975: 2974:fetal disease 2971: 2963: 2958: 2956: 2951: 2949: 2944: 2943: 2940: 2924: 2921: 2919: 2916: 2914: 2911: 2909: 2906: 2905: 2903: 2899: 2887: 2884: 2882: 2879: 2878: 2877: 2876: 2872: 2868: 2865: 2863: 2860: 2858: 2855: 2854: 2853: 2852: 2848: 2847: 2845: 2843: 2839: 2833: 2832:Myelophthisic 2830: 2828: 2825: 2823: 2819: 2818: 2816: 2813: 2811: 2807: 2804: 2802: 2799: 2794: 2790: 2780: 2777: 2776: 2773: 2770: 2768: 2765: 2764: 2759: 2756: 2755: 2754: 2751: 2749: 2746: 2745: 2740: 2737: 2736: 2735: 2734: 2730: 2729: 2720: 2717: 2713: 2710: 2709: 2708: 2705: 2703: 2700: 2698: 2695: 2694: 2692: 2690: 2686: 2683: 2681: 2677: 2671: 2668: 2664: 2661: 2660: 2659: 2656: 2652: 2649: 2648: 2647: 2644: 2642: 2638: 2636: 2633: 2631: 2627: 2624: 2620: 2617: 2615: 2612: 2610: 2607: 2606: 2605: 2602: 2600: 2596: 2595: 2590: 2587: 2585: 2582: 2580: 2577: 2576: 2575: 2574: 2570: 2568: 2565: 2563: 2559: 2558: 2556: 2554: 2550: 2547: 2544: 2539: 2535: 2527: 2524: 2523: 2522: 2518: 2515: 2514: 2509: 2506: 2505: 2504: 2500: 2497: 2496: 2494: 2492: 2488: 2485: 2483: 2479: 2476: 2472: 2462: 2459: 2458: 2456: 2454: 2450: 2447: 2443: 2439: 2435: 2428: 2423: 2421: 2416: 2414: 2409: 2408: 2405: 2392: 2388: 2387: 2383: 2381: 2377: 2376: 2372: 2371: 2368: 2364: 2357: 2353: 2352: 2348: 2346: 2342: 2341: 2337: 2335: 2331: 2327: 2326: 2322: 2318: 2316: 2312: 2308: 2307: 2303: 2299: 2297: 2293: 2289: 2285: 2281: 2280: 2276: 2272: 2271: 2268: 2263: 2259: 2243: 2239: 2235: 2231: 2227: 2223: 2219: 2212: 2204: 2200: 2196: 2192: 2188: 2184: 2180: 2176: 2169: 2161: 2157: 2151: 2143: 2139: 2135: 2131: 2126: 2121: 2117: 2113: 2109: 2102: 2094: 2090: 2085: 2080: 2076: 2072: 2068: 2064: 2060: 2053: 2045: 2041: 2036: 2031: 2027: 2023: 2019: 2015: 2011: 2004: 1996: 1992: 1987: 1982: 1977: 1972: 1968: 1964: 1960: 1953: 1945: 1941: 1937: 1933: 1929: 1925: 1921: 1917: 1910: 1903: 1901: 1899: 1897: 1888: 1884: 1879: 1874: 1870: 1866: 1862: 1855: 1847: 1843: 1839: 1835: 1831: 1827: 1820: 1812: 1808: 1804: 1800: 1796: 1792: 1789:(2): 91–106. 1788: 1784: 1777: 1769: 1765: 1760: 1755: 1751: 1747: 1743: 1739: 1735: 1728: 1720: 1716: 1709: 1701: 1700: 1695: 1689: 1681: 1677: 1672: 1667: 1663: 1659: 1655: 1651: 1647: 1640: 1634: 1627: 1619: 1613: 1605: 1599: 1595: 1588: 1580: 1576: 1572: 1568: 1564: 1560: 1553: 1545: 1541: 1537: 1533: 1529: 1525: 1521: 1517: 1510: 1508: 1499: 1495: 1491: 1487: 1483: 1479: 1475: 1471: 1464: 1462: 1453: 1449: 1445: 1441: 1436: 1431: 1427: 1423: 1419: 1412: 1410: 1401: 1397: 1393: 1389: 1385: 1381: 1377: 1370: 1362: 1358: 1354: 1350: 1346: 1342: 1338: 1334: 1330: 1323: 1315: 1311: 1307: 1303: 1299: 1295: 1288: 1286: 1284: 1282: 1280: 1278: 1276: 1274: 1272: 1263: 1259: 1255: 1251: 1247: 1243: 1239: 1235: 1228: 1220: 1216: 1212: 1208: 1204: 1200: 1193: 1191: 1189: 1174: 1170: 1166: 1162: 1155: 1153: 1151: 1149: 1140: 1136: 1132: 1128: 1123: 1118: 1114: 1110: 1106: 1099: 1091: 1087: 1082: 1077: 1073: 1069: 1065: 1058: 1056: 1054: 1045: 1041: 1036: 1031: 1027: 1023: 1019: 1015: 1011: 1004: 1002: 1000: 998: 996: 987: 983: 979: 975: 971: 967: 963: 959: 952: 950: 948: 946: 944: 942: 933: 929: 924: 919: 915: 911: 907: 903: 899: 892: 890: 888: 886: 884: 877: 873: 872: 866: 864: 862: 855: 854: 849: 844: 838: 837: 832: 827: 823: 813: 809: 806: 803: 800: 797: 794: 793: 787: 784: 771: 767: 762: 759: 754: 750: 749: 748: 740: 738: 724: 721: 717: 714: 710: 707: 704: 701: 698: 694: 690: 687: 684: 683: 682: 670: 666: 665: 660: 657: 654: 650: 649: 644: 641: 638: 635: 631: 627: 626: 621: 617: 613: 609: 607: 603: 602: 601: 599: 585: 582: 579: 576: 572: 568: 565: 562: 558: 554: 550: 546: 542: 538: 537: 536: 529: 526: 522: 518: 514: 510: 507: 503: 502: 501: 499: 494: 492: 482: 480: 477: 473: 470: 466: 460: 458: 454: 450: 446: 442: 438: 434: 430: 429: 424: 420: 416: 412: 408: 402: 384: 381: 378: 374: 371: 367: 364: 361: 358: 357:Sleep studies 355: 354: 345: 341: 337: 334: 330: 327: 324: 322: 318: 315: 314: 313: 311: 301: 299: 295: 291: 287: 283: 267: 264: 260: 258: 245: 241: 238: 235: 232: 228: 225: 224: 223: 211: 207: 204: 200: 197: 194: 190: 187: 186: 185: 183: 179: 177: 172: 168: 164: 160: 156: 152: 148: 135: 126: 124: 120: 115: 113: 109: 105: 100: 98: 94: 90: 86: 82: 78: 74: 73:polycythaemia 70: 62: 59: 57: 53: 48: 44: 39: 34: 19: 3498: 3254:Pneumothorax 3246: 3160: 3153:Birth trauma 3095:Breech birth 3085:presentation 3083: 3051: 3025: 2993: 2881:normochromic 2873: 2849: 2731: 2639: 2597: 2571: 2560: 2453:Polycythemia 2452: 2384: 2373: 2349: 2338: 2319: 2300: 2273: 2225: 2221: 2211: 2178: 2174: 2168: 2159: 2150: 2115: 2111: 2101: 2066: 2062: 2052: 2017: 2013: 2003: 1966: 1962: 1952: 1919: 1915: 1868: 1864: 1854: 1832:(1): 29–34. 1829: 1825: 1819: 1786: 1782: 1776: 1741: 1737: 1727: 1718: 1708: 1697: 1688: 1653: 1649: 1639: 1626: 1617: 1612: 1593: 1587: 1562: 1558: 1552: 1519: 1515: 1473: 1469: 1425: 1421: 1383: 1379: 1369: 1336: 1332: 1322: 1297: 1293: 1237: 1233: 1227: 1202: 1198: 1176:. Retrieved 1164: 1112: 1108: 1098: 1071: 1067: 1017: 1013: 961: 957: 905: 901: 869: 851: 843: 834: 826: 780: 746: 733: 730:Epidemiology 679: 662: 658: 646: 639: 623: 604: 595: 571:hypogonadism 545:liver tumors 539:Neoplasms – 534: 497: 495: 488: 468: 461: 447:, including 426: 404: 335:(EPO) levels 307: 286:splenomegaly 278: 265: 261: 254: 236: 226: 220: 210:blood doping 198: 188: 181: 180: 175: 171:hypertension 150: 149: 146: 132: 116: 101: 96: 72: 69:Polycythemia 68: 67: 36:Polycythemia 3598:Miscarriage 3500:muscle tone 3366:Kernicterus 3219:Respiratory 3195:Erb's palsy 3100:Asynclitism 3068:Nuchal cord 2886:hypochromic 2842:Blood tests 2604:Thalassemia 2562:enzymopathy 2491:Nutritional 2160:Mayo Clinic 575:transgender 517:sleep apnea 415:bone marrow 282:sleep apnea 174:likely has 163:body fluids 159:dehydration 155:hypovolemia 110:levels and 3640:Categories 3608:Stillbirth 3565:Omphalitis 3526:Infections 3435:Integument 2867:macrocytic 2862:microcytic 2857:normocytic 2820:Acquired: 2806:Hereditary 2573:glycolysis 2553:Hereditary 2351:DiseasesDB 1783:Hemoglobin 1178:2022-11-01 1165:StatPearls 818:References 743:Management 457:Phlebotomy 270:Evaluation 129:Definition 123:phlebotomy 93:hemoglobin 77:hematocrit 61:Hematology 3334:Anti-Kell 2972:period / 2970:perinatal 2538:Hemolytic 2375:eMedicine 2234:0095-6562 2203:232078345 1234:Angiology 802:Cytopenia 455:is rare. 423:platelets 344:blood gas 91:) and/or 56:Specialty 3304:Bleeding 2995:placenta 2796:(mostly 2793:Aplastic 2733:membrane 2680:Acquired 2641:membrane 2541:(mostly 2434:Diseases 2386:Orphanet 2380:Ped/1848 2242:10685591 2195:33645402 2142:14580718 2134:18650473 2093:18184961 2044:17579185 1995:16407130 1936:24246666 1887:21427381 1846:10676771 1811:10609812 1803:15921161 1680:29321547 1656:(1): 3. 1579:14631544 1544:30908506 1536:19494706 1498:15582610 1490:12415268 1452:17065771 1444:16210343 1400:10477715 1353:27098457 1314:25837692 1262:42326090 1219:18424246 1173:30252337 1139:18338178 1131:27069254 1090:31151982 1044:34021251 1014:Leukemia 986:11681060 978:16029446 932:32778603 790:See also 689:Headache 676:Symptoms 531:tissues. 453:leukemia 298:cyanosis 294:clubbing 227:Hypoxia: 176:absolute 3543:rubella 3173:Chignon 3027:chorion 2345:D011086 2084:2295209 2035:1976349 1986:1334658 1944:1490914 1768:9298550 1759:1332514 1671:5802495 1361:7376104 1035:8324477 923:7829024 606:Chuvash 439:and/or 433:vertigo 87:in the 3118:Growth 3031:amnion 2798:normo- 2543:normo- 2517:Macro- 2499:Micro- 2482:Anemia 2292:2A20.4 2240:  2232:  2201:  2193:  2140:  2132:  2091:  2081:  2042:  2032:  1993:  1983:  1942:  1934:  1885:  1844:  1809:  1801:  1766:  1756:  1678:  1668:  1600:  1577:  1542:  1534:  1496:  1488:  1450:  1442:  1398:  1359:  1351:  1312:  1260:  1254:686487 1252:  1217:  1171:  1137:  1129:  1088:  1042:  1032:  984:  976:  930:  920:  796:Anemia 737:NHANES 634:Ischia 622:gene ( 331:Serum 157:, cf. 3591:Other 3415:Ileus 3162:scalp 2901:Other 2630:trait 2619:delta 2609:alpha 2356:10295 2334:776.4 2330:289.0 2315:P61.1 2311:D75.1 2199:S2CID 2138:S2CID 2112:Blood 2014:Blood 1940:S2CID 1912:(PDF) 1807:S2CID 1540:S2CID 1494:S2CID 1448:S2CID 1422:Blood 1380:Blood 1357:S2CID 1258:S2CID 1135:S2CID 1109:Blood 1068:Blood 982:S2CID 664:HIF2α 559:with 476:skier 441:liver 169:men, 167:obese 89:blood 79:(the 3349:Rh E 3344:Rh D 3339:Rh c 2689:AIHA 2614:beta 2340:MeSH 2325:9-CM 2296:KA8A 2288:3A81 2284:3A80 2238:PMID 2230:ISSN 2191:PMID 2130:PMID 2089:PMID 2040:PMID 1991:PMID 1932:PMID 1883:PMID 1842:PMID 1799:PMID 1764:PMID 1699:OMIM 1676:PMID 1598:ISBN 1575:PMID 1532:PMID 1486:PMID 1440:PMID 1396:PMID 1349:PMID 1310:PMID 1250:PMID 1215:PMID 1169:PMID 1127:PMID 1086:PMID 1040:PMID 974:PMID 928:PMID 902:CMAJ 751:See 648:PHD2 555:and 513:COPD 469:EPOR 428:JAK2 421:and 326:JAK2 3437:and 3329:ABO 3324:HDN 3306:and 2436:of 2391:729 2321:ICD 2302:ICD 2275:ICD 2183:doi 2120:doi 2116:112 2079:PMC 2071:doi 2067:358 2030:PMC 2022:doi 2018:110 1981:PMC 1971:doi 1967:103 1924:doi 1920:347 1916:BMJ 1873:doi 1834:doi 1791:doi 1754:PMC 1746:doi 1666:PMC 1658:doi 1567:doi 1524:doi 1478:doi 1430:doi 1426:107 1388:doi 1341:doi 1302:doi 1242:doi 1207:doi 1117:doi 1113:127 1076:doi 1072:134 1030:PMC 1022:doi 966:doi 962:130 918:PMC 910:doi 906:192 850:at 833:at 768:or 625:VHL 573:or 368:or 342:or 296:or 83:of 3642:: 3136:/ 3127:/ 2808:: 2519:: 2501:: 2389:: 2378:: 2354:: 2343:: 2332:, 2328:: 2313:, 2309:: 2306:10 2294:, 2290:, 2286:, 2282:: 2279:11 2236:. 2226:71 2224:. 2220:. 2197:. 2189:. 2179:62 2177:. 2158:. 2136:. 2128:. 2114:. 2110:. 2087:. 2077:. 2065:. 2061:. 2038:. 2028:. 2016:. 2012:. 1989:. 1979:. 1965:. 1961:. 1938:. 1930:. 1918:. 1914:. 1895:^ 1881:. 1869:57 1867:. 1863:. 1840:. 1830:12 1828:. 1805:. 1797:. 1787:29 1785:. 1762:. 1752:. 1742:31 1740:. 1736:. 1717:. 1696:. 1674:. 1664:. 1652:. 1648:. 1573:. 1563:29 1561:. 1538:. 1530:. 1520:32 1518:. 1506:^ 1492:. 1484:. 1474:32 1472:. 1460:^ 1446:. 1438:. 1424:. 1420:. 1408:^ 1394:. 1384:94 1382:. 1378:. 1355:. 1347:. 1337:19 1335:. 1331:. 1308:. 1298:26 1296:. 1270:^ 1256:. 1248:. 1238:29 1236:. 1213:. 1203:13 1201:. 1187:^ 1163:. 1147:^ 1133:. 1125:. 1111:. 1107:. 1084:. 1070:. 1066:. 1052:^ 1038:. 1028:. 1018:35 1016:. 1012:. 994:^ 980:. 972:. 960:. 940:^ 926:. 916:. 904:. 900:. 882:^ 874:: 860:^ 547:, 543:, 292:, 3029:/ 2961:e 2954:t 2947:v 2800:) 2643:: 2628:/ 2601:: 2564:: 2545:) 2474:↓ 2445:↑ 2426:e 2419:t 2412:v 2323:- 2304:- 2277:- 2267:D 2244:. 2205:. 2185:: 2162:. 2144:. 2122:: 2095:. 2073:: 2046:. 2024:: 1997:. 1973:: 1946:. 1926:: 1889:. 1875:: 1848:. 1836:: 1813:. 1793:: 1770:. 1748:: 1721:. 1702:. 1682:. 1660:: 1654:8 1606:. 1581:. 1569:: 1546:. 1526:: 1500:. 1480:: 1454:. 1432:: 1402:. 1390:: 1363:. 1343:: 1316:. 1304:: 1264:. 1244:: 1221:. 1209:: 1181:. 1141:. 1119:: 1092:. 1078:: 1046:. 1024:: 988:. 968:: 934:. 912:: 772:. 722:) 715:) 671:. 580:. 563:. 20:)

Index

Erythrocytosis

Specialty
Hematology
hematocrit
volume percentage
red blood cells
blood
hemoglobin
red blood cells
erythropoeitin
genetic testing
polycythemia vera
phlebotomy
hypovolemia
dehydration
body fluids
obese
hypertension
myeloproliferative disease
low oxygen levels
blood doping
erythropoeisis
twin-to-twin transfusion syndrome
erythropoietin
sleep apnea
splenomegaly
erythromelalgia
clubbing
cyanosis

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑