BIOL 5601.docx 2 - BIOL 5600/6600 Mammalian Physiology,...

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BIOL 5600/6600 Mammalian Physiology, Exam 8 Auburn University 1. Define renal clearance 2. Calculate the renal clearance of substance X given the following: Renal clearance of inulin = 200 Plasma concentration of X = 4 mg/100 ml Cardiac output = 4,000 ml/min Tmax X=300 mg/min Urine concentration X=20 mg/5 ml Hematocrit=50 Urine volume =5 ml/min 3. Calculate the GFR given the following Renal clearance of PAH = 1000 Renal fraction = 20% TLOAD of X = 300 mg/min Hematocrit = 50 Urine volume = 10 ml/min Plasma concent X = 6 mg/ml Tmax X = 200 mg/min 4. Calculate the filtration fraction given the following Cardiac output = 4000 ml/min Urine volume = 10 ml/min Renal fraction = 25% PAH clearance = 400 Tmax = 100 mg/min GFR = 150 ml/min 5. Calculate the renal clearance of X given the following Hematocrit = 50 Urine volume = 5 ml/min Tmax X = 200 mg/min
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Inulin clearance = 100 Cardiac output = 4,000 ml/min Plasma concentration of X = 3 mg/ml Renal fraction = 25% PAH Clearance = 500 Answer all remaining questions on the scan sheet. Only the answers on the scan sheet will be graded. 1. Decreases urine volume A. ADH B. ANP C. Aldosterone D. All of these [E.] Two of these 2. Site of the production of ACE A. Liver B. Kidney [C.] Lung D. Atria E. Sertoli cells 3. Site of PAH. reabsorption A. PCT B. Ascending Loop of Henle C. DCT D. Collecting duct [E.] None of these 4. The ascending Loop of Henle A. Is permeable to water [B.] Actively transports sodium C. Is influenced by aldosterone D. All of these E. Two of these 5. ADH A. Is made in the posterior pituitary B. Makes the PCT more permeable to water C. Causes aldosterone to be released D. Two of these [E.] None of these
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6. A person that is acidodic A. May become hyperexcitable B. May be blowing off too much CO2 [C.] May excrete an acidic urine D. All of these E. Two of these 7. During acidosis [A.] Hydrogen ions are directly secreted from the tubular epithelial cells into the filtrate B. Bicarbonate is directly reabsorbed from the filtrate into the epithelial cells C. Ammonium ions are reabsorbed D. All of these E. Two of these 8. Respiratory acidosis
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This note was uploaded on 09/05/2010 for the course BIOL BIOL 5600 taught by Professor Wit during the Spring '10 term at Auburn University.

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BIOL 5601.docx 2 - BIOL 5600/6600 Mammalian Physiology,...

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