A patient presents with a high anion gap metabolic acidosis, what is the most likely cause?

A Diarrhea
B Lactic acidosis ✓
C Renal failure
D Respiratory alkalosis

Explanation

High anion gap metabolic acidosis is characterized by an increase in the anion gap due to unmeasured anions, such as lactate, and is commonly caused by lactic acidosis.

Source

Harrison's Principles of Internal Medicine
Electrolytes and Acid-Base Balance Acid-Base Balance Metabolic Acidosis Hard MEDICAL Confidence: high