A 78-year-old patient has chest pain that began upon awakening.

The correct answers are A, C, and E because this patient is experiencing suspected acute coronary syndrome (ACS) with hypoxia (SpO₂ 88%) and borderline hypotension .

Aspirin is indicated in suspected cardiac chest pain to reduce platelet aggregation and improve outcomes.

Oxygen is appropriate because the SpO₂ is below 94% , indicating hypoxemia.

Position of comfort (usually sitting upright) helps reduce cardiac workload and improves breathing.

NREMT guidelines emphasize treating hypoxia, reducing cardiac workload, and administering aspirin early in suspected ACS.

CPAP is not indicated due to low blood pressure (92 systolic) , and AED use is not appropriate because the patient is not in cardiac arrest.