Surgery A 40-year-old man is found to have severe metabolic acidosis with a high anion gap. What is the most likely cause? A Diarrhea B Methanol ingestion C Proximal renal tubular acidosis D Distal renal tubular acidosis 💡 Explanation A 40-year-old man is found to have severe metabolic acidosis with a high anion gap. What is the most likely cause? ✓ Correct Answer: B. Methanol ingestion