A patient experiencing an increase in urine output among other symptoms consulted an internal medicine specialist. The specialist ran a number of tests related to renal function. Here are some of the results.
Urine flow = 2 L/day Be sure to watch units!
Plasma [creatinine] = 0.1 mg/dL urine [creatinine] = 75 mg/L
Plasma glucose = 400 mg/dl urine [glucose] = 37.5 g/L
a. Use creatinine clearance to estimate the patient's GFR.
75mg/dl
b. How much glucose does the patient filter per day?
c. How much glucose does the patient excrete per day?
d. What is his transport maximum in mg/day?
e. What is the patient's renal threshold?
f. Calculate the patient's glucose clearance. What is normal glucose clearance? (see text)