A 67-year-old patient reports crushing chest pressure.

Comprehensive and Detailed Explanation From Exact Extract:

The patient’s symptoms are consistent with acute coronary syndrome (ACS). The first-line treatments are:

Aspirin (160–325 mg): inhibits platelet aggregation, reducing clot progression.

Oxygen: administered when SpO₂ <94% or signs of hypoxia/distress are present.

CPAP is for pulmonary edema or respiratory failure. Nitroglycerin requires BP >90 systolic and medical direction approval. Laying the patient supine may increase myocardial workload and is inappropriate unless hypotension occurs.