Smoke that enters the cockpit, if inhaled, causes symptoms similar to what type of poisoning?

Smoke that enters the cockpit, if inhaled, causes symptoms similar to what type of poisoning?

• A. Mercury poisoning
• B. Carbon monoxide poisoning
• C. Arsenic poisoning
• D. Cyanide poisoning

Answer: (B)

Smoke inhalation from a cockpit commonly presents as carbon monoxide poisoning because carbon monoxide binds to hemoglobin far more readily than oxygen, forming carboxyhemoglobin. This dramatically reduces the blood’s capacity to carry oxygen and impairs oxygen delivery to tissues, leading to hypoxic symptoms such as headache, dizziness, confusion, and nausea that can impair flight performance. Arsenic, mercury, and cyanide cause different toxin effects, whereas the hallmark of smoke exposure in flight is the hypoxic picture from carbon monoxide, making it the best explanation for these symptoms.

Smoke inhalation from a cockpit commonly presents as carbon monoxide poisoning because carbon monoxide binds to hemoglobin far more readily than oxygen, forming carboxyhemoglobin. This dramatically reduces the blood’s capacity to carry oxygen and impairs oxygen delivery to tissues, leading to hypoxic symptoms such as headache, dizziness, confusion, and nausea that can impair flight performance. Arsenic, mercury, and cyanide cause different toxin effects, whereas the hallmark of smoke exposure in flight is the hypoxic picture from carbon monoxide, making it the best explanation for these symptoms.