doc179
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A patient with coronary artery disease undergoes coronary arteriography, which reveals an obstruction producing a 50% decrease in the luminal diameter of the left anterior descending coronary artery. If the perfusion is normally 80 mm Hg, what would the new perfusion pressure be, if flow beyond the obstruction was maintained at normal levels?
a. 40 mm Hg
b. 80 mm Hg
c. 120 mm Hg
d. 160 mm Hg
e. 1,280 mm Hg
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| robin082006
Forum Hero
Topics: 471
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e
= 2*2*2*2*80
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| ssrpk
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which formula have you applied?
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| anjushree
Forum Guru
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ans is 1280
MAIN FORMULA IS P=QR,,,,,R IS INV PROPORTIONAL TO FOURTH POWER OF radius
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| mjl1717
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A derivative of Ohms law
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| bluntknife
Forum Senior
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ru sure that 1280mmHg is the right answer......i just find it so hard to believe.....
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