Tuesday, 4 October 2011
CREATININE CLEARANCE
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Which of the following would be expected to cause renal inulin (or creatinine) clearance to increase?
A. dilation of the afferent arteriole
B. dilation of the efferent arteriole
C. constriction of the afferent arteriole
D. constriction of the efferent arteriole
E. both A and D above
E. Both dilation of the afferent arteriole and constriction of the efferent arteriole would increase glomerular capillary hydrostatic pressure and thus increase GFR. Note that inulin (or creatinine) clearance is a measure of GFR.
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