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Kaplan Qbank USMLE



Author7 Posts
  #1

A 54 year old man has a myocardial infartion
a coronary stent restores blood flow,but reperfusion causes a paradoxical increase in damage
which of the following is the most likely mechanism of the new myocardial damage ?

a.-direct poisoning of mitochondrial enzymes
b.-increase in lipid peroxidation of membranes
c.-inhibition of ATPase dependent transport
d.-loss of intracellualr amino acids
e.-prevention of cross linking of labile amino acids

  #2

C.?

  #3

to early ?

  #4

b. reperfusion injury involves free radical damage and b wud result

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  #5

thanks

B

  #6



___________________
If you yourself are at peace, then there is at least some peace in the world.

  #7

B...reperfusion injury leads to production of free radicals will lead to further damage..







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