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Kaplan Qbank USMLE



Author7 Posts
  #1

A 56-year-old patient presents with polycythemia. He is found to have low oxygen saturation, increased red blood cells mass, normal plasma volume and increased erythropoietin levels. Which one of the following is the most likely diagnosis?




1) polycythemia rubra vera


2) chronic obstructive pulmonary disease (COPD)


3) stress polycythemia


4) renal adenocarcinoma


5) congenital spherocytosis

  #2

copd

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  #3

yeah agree withu,it's copd.Low o2----inc erythropoitin----polycythemia

  #4

I don't think so. It should be renal cell carcinoma. Because of high erythropoitin

  #5

I'd go with COPD

  #6

yep, COPD is the right answer.

  #7

xfwang2002 why do u expect to have low PO2 in renal cell Ca?

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