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Carbon monoxide (CO) poisoning during flight typically presents as

Choices

  • sharp chest pain.

    Chest pain is more associated with cardiac issues.

  • ✓ headache, dizziness, drowsiness, nausea, and impaired judgment.correct

    all subtle symptoms that can lead to incapacitation. CO is colorless and odorless; sources include exhaust leaks into the cabin via the heater system. CO poisoning symptoms: headache, dizziness, drowsiness, nausea, and progressive impairment. Cabin source is usually a cracked exhaust manifold leaking into the heater muff. If suspected: turn cabin heat OFF, open vents/windows, descend to lower altitude (more O2), declare emergency, land. Carry a detector — chemical spot or electronic.

  • ringing in the ears only.

    Tinnitus alone is not a CO sign.

  • no symptoms — only detected via CO detector.

    Detectors help but symptoms are perceivable; pilots should know them.

Why

all subtle symptoms that can lead to incapacitation. CO is colorless and odorless; sources include exhaust leaks into the cabin via the heater system. CO poisoning symptoms: headache, dizziness, drowsiness, nausea, and progressive impairment. Cabin source is usually a cracked exhaust manifold leaking into the heater muff. If suspected: turn cabin heat OFF, open vents/windows, descend to lower altitude (more O2), declare emergency, land. Carry a detector — chemical spot or electronic.

FAA source: PHAK Ch 17, AC 20-32; PHAK Chapter 17 — Aeromedical Factors; AC 20-32 Carbon Monoxide Contaminationbrowse the reference library →

Covered in Supplemental · IX — Emergency Operations — study the lessons free, then practice with grading and mastery tracking.

Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.

Carbon monoxide (CO) poisoning during flight typically presents as · PPL Free Ground School