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.
  2. 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.
  3. 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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