A patient who is 72 hours postoperative repair of ...

Adult CCRN/PCCN Certification Practice Test

Question Number 5

A patient who is 72 hours postoperative repair of a bowel obstruction suddenly demonstrates shortness of breath and his respiratory rate increases from 22 to 45/min. His SpO2 went from 95% to 88% acutely. An arterial blood gas sample obtained while the patient is receiving oxygen via a nasal cannula at 6L/min reveals the following results:pH 7.40pCO2 27pO2 50A chest x-ray is obtained and a "ground-glass-like appearance" is reported. Auscultation of the lungs reveals diffuse crackles that were not present previously.On admission, your patient's arterial blood gas on room air is: pH 7.23, PaCO2 55, PaO2 90, HCO3 30. The correct arterial blood gas interpretation is:

A. Uncompensated metabolic acidosis

B. Uncompensated respiratory alkalosis

C. Uncompensated respiratory acidosis

D. Uncompensated metabolic alkalosis

✔ Correct Answer:

C. Uncompensated respiratory acidosis

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Adult CCRN/PCCN Certification Practice Test

Question Number 5

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