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kimmy456
12-10-2014, 05:30 PM
Arteriography of a patient's left renal artery shows narrowing of the radius of the artery by 25%. What (approximately) is the expected change in the resistance of the stenotic artery?

Increase 2 fold
Increase 4 fold
Increase 8 fold
Increase 16 fold
No change

MedSchoolDreamer
12-10-2014, 06:01 PM
You use Poiseuille's Equation. The answer is increase 16 fold

kimmy456
12-10-2014, 07:36 PM
Thank you very much!







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