When a client has an arterial blood pH of 7.48, what action by a buffer will bring the pH back to normal?
A. Absorb bicarbonate ions from the blood
B. Release bicarbonate ions into the blood
C. Absorb hydrogen ions from the blood
D. Release hydrogen ions into the blood
D
Buffers can act either as an acid (releasing a hydrogen ion) or a base (absorbing a hydrogen ion) to assist in keeping the pH and hydrogen ion concentration of body fluids within the normal range. An arterial pH of 7.48 indicates a deficiency of hydrogen ions. This situation would cause buffers to act like acids and release hydrogen ions into the blood.
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