PS%209 - BIOE 322/BIOS 332 Fundamentals of Systems...

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Page 1 of 2 BIOE 322/BIOS 332 Fundamentals of Systems Physiology Spring 2008 Problem Set #9 DUE : M 4/21/08 *** REMEMBER TO SHOW YOUR WORK FOR QUANTITATIVE PROBLEMS! *** 1. What is the normal value for urine osmolality? Explain. 2. Drugs that increase urine volume are called diuretics. Some diuretics inhibit the active transport of Na+ in the nephron. Explain how these diuretic drugs could cause increased urine volume. 3. Ethyl alcohol inhibits ADH secretion. Given this information, explain how alcoholic beverages affect urine production. 4. A person is suspected of suffering from chronic renal failure. To assess kidney function, urea clearance is measured and found to be very low. Explain what a very low urea clearance indicates in a person suffering from chronic renal failure. 5. If only a very small amount of urea were present in the interstitial fluid of the kidney instead of its normal concentrations, how would it affect the kidney’s ability to concentrate urine? Explain. 6.
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This note was uploaded on 04/26/2008 for the course BIOE 332 taught by Professor Suh during the Spring '08 term at Rice.

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PS%209 - BIOE 322/BIOS 332 Fundamentals of Systems...

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