Normally which of the following occur when the kidneys eliminate H+? 1. Sodium ions (and water) are reabsorbed. 2. HCO3– is reabsorbed in proportion to the H+ excreted. 3. Bicarbonate buffer capacity is restored
a. 1, 2, and 3
b. 1 and 3 only
c. 2 only
d. 2 and 3 only
ANS: A
Both HCO3– ions and Na+ ions are reabsorbed with water whenever H+ ions are secreted into the tubular filtrate.
Health Professions
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