When a client has an arterial blood pH of 7.48, which buffer action will bring the pH back to normal?
a. Absorption of bicarbonate ions from the blood
b. Release of bicarbonate ions into the blood
c. Absorption of hydrogen ions from the blood
d. Release of hydrogen ions into the blood
D
Buffers can act as an acid (releasing a hydrogen ion) or as 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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