If Acute Mountain Sickness symptoms persist or worsen despite initial measures, what is the recommended action?

• A. Descent to a lower altitude.
• B. Advance to higher altitude.
• C. Take sedatives to sleep through symptoms.
• D. Ignore symptoms.

Answer: (A)

Descent to a lower altitude is the best course when AMS symptoms persist or worsen after initial measures. Climbing higher or trying to sleep through symptoms leaves the body under hypoxic stress and can allow the condition to worsen into more serious issues. Lowering elevation immediately reduces the hypoxic burden, improves oxygen delivery to the brain and lungs, and usually leads to symptom improvement. Sedatives can mask dangerous signs by depressing respiration, and ignoring symptoms risks progression. If possible, accompany descent with rest, fluids, and supplemental oxygen, and seek medical evaluation if symptoms are severe or new signs like confusion or severe shortness of breath appear.