When dealing with suspected ACS in flight, which combination of actions is recommended?

• A. Administer aspirin, provide oxygen, and arrange rapid medical evaluation and descent.
• B. Turn off oxygen to save fuel
• C. Ignore symptoms until landing
• D. Administer epinephrine and nitroglycerin only

Answer: (A)

In this situation, the priority is to start treatment that buys time and improves outcomes while arranging definitive care. Administering aspirin promptly helps reduce clot formation by inhibiting platelet aggregation, which is beneficial when acute coronary syndrome is suspected. Providing supplemental oxygen supports oxygen delivery to the heart and tissues, especially at altitude where partial pressure of oxygen is lower and hypoxemia can occur. Arranging rapid medical evaluation and descent gets the patient to a facility equipped to diagnose and treat ACS quickly, which can limit heart damage and improve survival.

The other options miss essential steps or introduce risks: turning off oxygen can cause dangerous hypoxemia; ignoring symptoms until landing delays potentially life-threatening; and relying on epinephrine and nitroglycerin alone omits the crucial aspirin therapy and the need for prompt definitive care—epinephrine is not a standard ACS treatment, and while nitroglycerin can be used with proper precautions, it does not substitute for aspirin and rapid transport.