asmi
Forum Hero
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List few causes ?
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| usmleasr
Forum Guru
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high altitude, COPD, and any cause of hypoxemia 
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| asmi
Forum Hero
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you forgot DIURETICS
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| gr_calif
Forum Junior
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RELATIVE POLYCYTHEMIA is a condition in which there is reduced plasma volume :arrow: HEMOCONCENTRATION.
it is different from ABSOLUTE POLYCYTHEMIA...which is classified into primary and secondary.
1] PRIMARY: :arrow: due to abnormal proliferation of myeloid stem cells, ERYTHROPOITEN levels are NORMAL OR LOW :arrow: POLYCYTHEMIA VERA.
2] SECONDARY: :arrow: B'COS OF INCREASED ERYTHROPOITEN LEVELS...they r futher classified as
a] APPROPRIATE: lung disesse, high altitude living, cyanotic heart d disease.
b] INAPPROPRIATE; :erythropoiten-secreting tumors..eg CC,hepatoma,cerebellarhemangioblastoma.
so high altitude ,COPD and hypoxemia come under APPROPRIATE SECONDARY and NOT RELATIVE POLYCYTHEMIA.
SO HOPE I'M CLEAR!
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| asmi
Forum Hero
Topics: 1043
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hi,
Relative polycythemia/spurious/stress polycythemia are the type of secondary polycythemia.
http://www.chclibrary.org/micromed/00064670.html
hope it helps
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| gr_calif
Forum Junior
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hi friend!
i'm sorry ,this is what i remember reading in ROBBIN'S PATHOLOGY TEXTBOOK.
:roll:
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| usmleasr
Forum Guru
Topics: 105
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thats good friend ..it makes us think a while...yes as u said relative to plasma..again in 2' causes RBC mass is relatively higher than plasma :idea:
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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its one and the same thing doc
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