HUMAN PHYSIOLOGY: AN INTEG ACCESS C
8th Edition
ISBN: 9780134714837
Author: Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 32RQ
Hyperglycemia in a diabetic patient leads to osmotic diuresis and dehydration. Given the following information, answer the questions.
Plasma glucose = 400 mg/dL
Normal urine flow = 1 L per day
GFR = 130 mL/min
Normal urine osmolarity = 300 mOsM
Glucose Tm = 400 mg/ min
Molecular mass of glucose = 180 daltons
Renal plasma flow = 500 mL/min
- a. How many milligrams of glucose filter into the nephron each minute?
- b. How many milligrams of glucose are reabsorbed each minute?
- c. How many grams of glucose are excreted in the urine each day?
- d. Assuming that dehydration causes maximal vasopressin secretion and allows the urine to concentrate to 1200 mOsM, how much additional urine does this diabetic patient excrete in a| day?
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Chapter 20 Solutions
HUMAN PHYSIOLOGY: AN INTEG ACCESS C
Ch. 20.2 - Does the apical membrane of a collecting duct cell...Ch. 20.2 - Prob. 2CCCh. 20.2 - A scientist monitoring the activity of...Ch. 20.2 - If vasopressin increases water reabsorption by the...Ch. 20.2 - Experiments suggest that there are peripheral...Ch. 20.2 - Prob. 6CCCh. 20.2 - Prob. 7CCCh. 20.3 - In Figure 20.9b, what forces cause Na+ and K+ to...Ch. 20.3 - Prob. 9CCCh. 20.3 - Laboratory values for ions may be reported as...
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