For the child experiencing excessive vomiting secondary to pyloric stenosis, the nurse should assess...

For the child experiencing excessive vomiting secondary to pyloric stenosis, the nurse should assess the child for which of the following acid-base imbalances?

A.Respiratory alkalosis.
B.Respiratory acidosis.
C.Metabolic alkalosis.
D.Metabolic acidosis.

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参考答案: C

参考解析: Metabolic alkalosis occurs because of the excessive loss of potassium, hydrogen, and chloride in the vomitus. Chloride loss leads to a compensatory increase in the number of bicarbonate ions. The bicarbonate side of the carbonic acid-base bicarbonate is increased, and the pH becomes more alkaline.

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