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Exam NCLEX-RN topic 4 question 126 discussion

Actual exam question from Test Prep's NCLEX-RN
Question #: 126
Topic #: 4
[All NCLEX-RN Questions]

A baby who was diagnosed with pyloric stenosis has continued to have projectile vomiting. With prolonged vomiting, the infant is prone to:

  • A. Respiratory acidosis
  • B. Respiratory alkalosis
  • C. Metabolic acidosis
  • D. Metabolic alkalosis
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Suggested Answer: D 🗳️
(A) Respiratory acidosis is the result of problematic ventilation. Plasma pH decreases, while plasma PCO2 and plasma HCO3 increase. (B) Respiratory alkalosis results from increased respiratory rate and depth. Plasma pH increases, while plasma PCO2 and plasma HCO3 decrease. (C) Metabolic acidosis occurs when there is strong acid gain in the body. Plasma pH, PCO2, and HCO3 decrease. (D) Increased risk for metabolic alkalosis is due to a loss of hydrogen ions; depletion of potassium, sodium, and chloride when vomiting occurs. Plasma pH and plasma PCO2 increase; plasma HCO3 may decrease and then increase to compensate.
by [deleted] at March 10, 2025, 6:50 a.m.

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