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Physiology
A 20 year old male patient came with the complaint of a decrease in the urinary output to about 400ml/day. Both RBF and GFR were decreased. Which of the following causes a decrease in both RBF and GFR?
Dilation of efferent aeriole
Dilation of afferent aeriole
Only afferent aeriolar constriction
Only efferent aeriolar constriction
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