In STEMI management, which action is contraindicated if the patient is hypotensive?

In STEMI management, which action is contraindicated if the patient is hypotensive?

• A. Administer nitroglycerin
• B. Administer aspirin
• C. Administer oxygen
• D. Activate cath lab

Answer: (A)

Giving nitroglycerin lowers preload by dilating veins, and it can also raise the risk of dropping blood pressure further when a patient is already hypotensive. In STEMI, adequate perfusion pressure is crucial to deliver blood to the ischemic myocardium, so reducing BP further can worsen myocardial ischemia and lead to shock. For this reason, nitroglycerin is contraindicated in hypotension. Aspirin is beneficial in STEMI because it inhibits platelet aggregation, helping to limit thrombus growth and improve outcomes. Oxygen is used when the patient is hypoxic or at risk of low oxygen saturation to ensure adequate oxygen delivery. Activating the cath lab is essential for reperfusion and should proceed to restore blood flow, provided the patient can be stabilized; in cases of suspected right ventricular infarct, nitrates are especially avoided due to their preload-reducing effect worsening hypotension.

Giving nitroglycerin lowers preload by dilating veins, and it can also raise the risk of dropping blood pressure further when a patient is already hypotensive. In STEMI, adequate perfusion pressure is crucial to deliver blood to the ischemic myocardium, so reducing BP further can worsen myocardial ischemia and lead to shock. For this reason, nitroglycerin is contraindicated in hypotension.

Aspirin is beneficial in STEMI because it inhibits platelet aggregation, helping to limit thrombus growth and improve outcomes. Oxygen is used when the patient is hypoxic or at risk of low oxygen saturation to ensure adequate oxygen delivery. Activating the cath lab is essential for reperfusion and should proceed to restore blood flow, provided the patient can be stabilized; in cases of suspected right ventricular infarct, nitrates are especially avoided due to their preload-reducing effect worsening hypotension.