The nurse is reviewing the client's arterial blood gas results. The test reveals a pH of 7.52, a PaO2 level of 49 mmHg and an HCO3 level of 28 mEq/L, the nurse suspects the client is most likely experiencing which condition?
A) Metabolic alkalosis
B) Metabolic acidosis
C) Respiratory acidosis
D) Respiratory alkalosis
Ans: A
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Metabolic alkalosis occurs when there is excessive loss of body acids or with unusual intake of alkaline substances. It can also occur in conjunction with an ECF deficit or potassium deficit (known as "contraction alkalosis"). Vomiting or vigorous nasogastric suction frequently causes metabolic alkalosis. Endocrine disorders and ingestion of large amounts of antacids are other causes. The loss of stomach acid or taking in of base causes H+ shifts in the blood, and pH increases.
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