TEST BANK FOR BERNE AND LEVYPHYSIOLOGY 7TH EDITION BY KOEPPEN

Koeppen: Berne and Levy Physiology, 7th Edition Chapter 02: Homeostasis of Body Fluids Test Bank Multiple Choice 1. A 100 mmol/L solution of MgCl2 would be expected to have an osmolality of which of the following? A. 50 mOsm/kg H2O B. 100 mOsm/kg H2O C. 200 mOsm/kg H2O D. 300 mOsm/kg H2O E. 350 mOsm/kg H2O ANS: D 2. Three individuals, each weighing 55 kg and each having a plasma [Na+] of 145 mEq/L, receive infusions of different solutions. Individual A receives 1 L of isotonic NaCl (290 mOsm/kg H2O); individual BNrUecReiSve IsN1GLToBf .a mCa OnMnitol solution (290 mOsm/kg H2O); and individual C receives 1 L of a 5% dextrose in water (D5W) solution (290 mOsm/kg H2O). Assuming that there is no urine output, and after complete equilibration of the extracellular and intracellular fluid, which of these individuals will have a lower plasma [Na+]? A. Individual A (NaCl infusion). B. Individual B (mannitol infusion). C. Individual C (D5W infusion). D. Individuals A, B, and C will have the same plasma [Na+]. ANS: B 3. Intravenous infusion of 2 L of which of the following solutions will lead to the largest increase in intracellular fluid volume? A. D5W B. Isotonic NaCl C. Hypotonic NaCl D. Hypertonic NaCl