Renal study quest.2005

Renal study quest.2005 - STUDY QUESTIONS November 16, 2005...

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STUDY QUESTIONS November 16, 2005 1. The concentration of glucose in plasma is 100 mg/100 ml and the GFR is 125 ml/min. How much glucose is filtered per minute? 2. A drug is noted to cause a decrease in GFR. What might the drug be doing? 3. A drug is noted to cause an increase in GFR with no change in net filtration pressure. What must the drug be doing? 4. A person is given a drug that dilates the afferent arteriole and constricts the efferent arteriole by the same amounts. Assuming no other actions of the drug, what happens to this person’s GFR, RBF, and filtration fraction? 5. During a dog experiment, a clamp around the renal artery is partially tightened to reduce renal arterial pressure from a mean of 120 mmHg to 80 mmHg. How much do you predict RBF will change? 6. The hospital lab reports that your patient’s creatinine clearance is 120 g/day. This value is ________________________________. 7. The following test results were obtained on specimens from a person over a 2-h period during infusion of inulin and PAH: Total urine vol = 0.14 L U ln = 100 mg/100 ml P ln = 1 mg/100 ml U urea = 220 mmol/L P urea = 5 mmol/L U PAH = 700 mg/L P PAH = 2 mg/L
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Renal study quest.2005 - STUDY QUESTIONS November 16, 2005...

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