Ongoing Nasogastric Suction in Medicine / Internal Medicine — 72yo Man | Respiratory / Pulmonology | SMLE Q#18233
SMLE Question #18233
Medicine / Internal Medicine
Respiratory / Pulmonology
Objective: OBJ-123
Last updated: February 2026
A 72-year-old man is on postoperative day 3 after subtotal colectomy. He has poor oral intake with ongoing nasogastric suction and repeated vomiting, and reports dizziness on standing. Arterial blood gas is obtained on room air. What is the most appropriate interpretation of this ABG?
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