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Kaplan Qbank USMLE



Author4 Posts
  #1

A 12 week old infant with a history of persistent diarrhea and candidiasis is seen for respiratory tract infection with P.carinii. A chest xray confirms pneumonia and reveals the absence of thymic shadow. Trace amount of IgG are present in his serum, but IgA and IgM are absent. His RBC completely lack an essential enzyme in purine degradation. Which of the following products is normally formed by this enzyme ?

A. Guanine monophosphate
B. Hypoxanthine
C. Inosine
D. Xanthine
E. Xanthine monophosphate

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Please call me by my first name on March 17 - Dr.

  #2

inosine?
adenosine deaminase def(SCID)

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I hear and I forget. I see and I remember. I do and I understand.
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  #3

mash,

I said you are banned from answering. :evil:

BTW....that's correct .you're unstopable

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Please call me by my first name on March 17 - Dr.

  #4

good question

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