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Kaplan Qbank USMLE



Author10 Posts
  #1

In acute coronary spasm, within seconds mitochondria swelling & depletion of glycogen grannules. Which event caused this?
a.accumulation of FFA
b. Decrease ATP
c. Degradation of membrane phospholipids
d. Efflux of K
e. Influx of Na

  #2

A..??





Edited by reet on 01/29/06 - 07:52 PM

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  #3

A or B? reet?

  #4

decrease atp, as na k atp ase pump will not work, na will accumulate and cause swelling

  #5

b

  #6

I also think is b.

  #7

Depletion of ATp causes block of Na-K pump and entry of Na and water into the cells.

the metabolism is now anaerobic and there's consumption of glucose and decreasing in glycogen deposits.


  #8

b

  #9

B

  #10

It is B-decrease of ATP-mitochondria go down and that is the earliest event.







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