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NDBE Physiology Question

Discussion in 'NBDE Exams & Licensure Exams' started by pfaffdog, Aug 4, 2006.

  1. Can anyone help me in figuring out why the answer to the following question is "greater than 2"?

    Assuming that P50 = 26 torrs, under conditions where pO2 = 30 torrs, the average number of O2 molecules bound per hemoglobin molecule is closest to

    a. 0.5.
    b. less than 1.
    c. almost 2.
    d. greater than 2.
    e. greater than 3.
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  3. Typo

    10+ Year Member

    Apr 27, 2004
    Likes Received:
    Each hemoglobin carries 4 oxygen molecules, so P50 (half saturation) would be 2 molecules. Since the pO2 is over the P50 pressure, the average number of O2 molecules bound to hemoglobin would come out to just over 2.
  4. pendejodo

    pendejodo Senior Member
    10+ Year Member

    May 2, 2004
    Likes Received:
    well done nice explination what book is good for phisiology

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