A patient's arterial blood gas levels indicate a pH of 7.51, PaCO2 of 40 mm Hg, PaO2 of 85 mm Hg, and HCO3 of 32 mEq/L. The patient has been vomiting. The nurse knows the patient is suffering from:
A. metabolic acidosis.
B. metabolic alkalosis.
C. respiratory acidosis.
D. respiratory alkalosis.
B
Metabolic Acidosis
pH <7.35
PaCO2 normal if uncompensated or <35 mm Hg if compensated
PaO2 normal or increased with rapid, deep respiration
Bicarbonate level 22 mEq/L
Oxygen saturation normal
Respiratory Acidosis
pH <7.35
PaCO2 >45 mm Hg
PaO2 <80 mm Hg
Bicarbonate level normal if uncompensated or >26 mEq/L if compensated
Respiratory Alkalosis
pH >7.45
PaCO2 <35 mm Hg
PaO2 normal
Bicarbonate level normal if short lived or uncompensated or <22 mEq/L if compensated
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