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Kaplan Qbank USMLE



Author4 Posts
  #1

Which one of the following, when added to stored blood, has the capacity to improve oxigen delivery to tissue?

A. Citrate

B. Dextose

C. Inosine

D. Phosphate

E. Fructose


  #2

is it citrate? raised eyebrow I think I am wrong...I just did a google search and one of the links says tht inosine maintains 2,3 BPG in the blood for 35 days and pyridoxal phosphate improves xygen delivery.

Edited by doc179 on 05/10/07 - 03:17 PM

  #3

google was right, citrate is anticoagulant because chelates calcium, while inosine maintains 2,3 DPG thereby icreasing oxigen release. I said Phosphate when I did it because I thought it was necessary to make DPG and of course didn't know about inosine, but not, I was wrong, Phosphate is required for ATP synthesis.

  #4

nod







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