A 35-year-old woman is pulled from a house fire. She is confused (GCS 12) with a COHb level of 35%. She has no visible burns. ABG shows metabolic

Question

A 35-year-old woman is pulled from a house fire. She is confused (GCS 12) with a COHb level of 35%. She has no visible burns. ABG shows metabolic acidosis (pH 7.22, lactate 8 mmol/L). What is the most likely additional toxic exposure?

Accepted Answer

Cyanide poisoning

Answer

Carbon monoxide poisoning alone

Answer

Methanol poisoning

Answer

Thermal injury alone

Answer

Smoke inhalation without toxicity

Cyanide Poisoning in Fire — RACP Adult Medicine MCQ

A 35-year-old woman is pulled from a house fire. She is confused (GCS 12) with a COHb level of 35%. She has no visible burns. ABG shows metabolic acidosis (pH 7.22, lactate 8 mmol/L). What is the most likely additional toxic exposure?