When trying to explain the role of potassium and hydrogen related to acid-base balance, which of the following statements is accurate?
A)
Hypokalemia stimulates H+ secretion.
B)
Hyperkalemia will cause the reabsorption of HCO3.
C)
Acidosis causes an increase in K+ elimination.
D)
Alkalosis tends to increase H+ elimination.
Ans:
A
Feedback:
Hypokalemia is a potent stimulus for H+ secretion and HCO3 reabsorption. Acidosis tends to increase H+ elimination and decrease K+ elimination, with a resultant increase in plasma potassium levels, whereas alkalosis tends to decrease H+ elimination and increase K+ elimination, with a resultant decrease in plasma K+ levels.
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