For suspected myocardial infarction, what is the primary nursing action?

• A. Assess the patient and initiate STEMI protocol.
• B. Administer antibiotics.
• C. Collect urine sample before any treatment.
• D. Wait for diagnostic confirmation before acting.

Answer: (A)

In suspected myocardial infarction, the priority is rapid assessment and initiation of treatment to restore blood flow to the heart. The nurse should quickly assess the patient, monitor vital signs and cardiac rhythm, and immediately initiate the STEMI protocol. Acting promptly helps minimize myocardial damage and improves outcomes. This often includes establishing IV access, administering aspirin if not contraindicated, providing oxygen if needed, and mobilizing the cath lab for urgent reperfusion while continuing continuous monitoring and supportive care.

Antibiotics have no role in an acute MI unless there's a separate infection; collecting a urine sample before treatment wastes valuable time; and waiting for diagnostic confirmation before acting delays therapy that is time-critical for saving heart muscle.