Metabolic acidosis may be caused by: 1. an increase in fixed (nonvolatile) acids. 2. an increase in blood carbon dioxide (CO2). 3. excessive loss of bicarbonate (HCO3–)
a. 1 only
b. 1 and 2 only
c. 1, 2, and 3
d. 1 and 3 only
ANS: D
Metabolic acidosis can occur in one of the following two ways: (1) fixed (nonvolatile) acid ac-cumulation in the blood or (2) an excessive loss of HCO3– from the body.
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