MCAT Question A Day - 8/3/14 - Answer!

An afferent arteriole in a glomerular tuft contains microscopic fenestrations which increase fluid flow. In a hypertensive patient (a patient with high blood pressure):

A. These fenestrations would constrict resulting in decreased urinary output.

B. Filtrate volume would be expected to be larger due to increased fluid pressure.

C. Filtrate volume would be expected to be smaller due to increased fluid pressure.

D. Urinary output will most likely be diminished due to increased solute concentration.

B is correct. High blood pressure would result in more fluid being forced into Bowman's capsule.

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