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Multiple Choice

A 57-year-old female with shortness of breath who is initially hypotensive develops chest pain and worsening dyspnea during fluid administration. Which medication should be given unless contraindicated?

In suspected acute coronary syndrome, giving an antiplatelet now improves survival by limiting thrombus growth. Acetylsalicylic acid (aspirin) does this by irreversibly inhibiting COX-1 in platelets, reducing thromboxane A2 and preventing further platelet aggregation for the life of a platelet. This is especially important when chest pain and dyspnea suggest myocardial ischemia and the patient may be unstable. In this scenario, aspirin is preferred because it directly targets the coronary thrombus process and is safe to give unless there’s a contraindication. Nitroglycerin could worsen hypotension, and diuretics or an antiarrhythmic aren’t addressing the underlying platelet-driven event without specific indications. Therefore acetylsalicylic acid is the best early choice.

In suspected acute coronary syndrome, giving an antiplatelet now improves survival by limiting thrombus growth. Acetylsalicylic acid (aspirin) does this by irreversibly inhibiting COX-1 in platelets, reducing thromboxane A2 and preventing further platelet aggregation for the life of a platelet. This is especially important when chest pain and dyspnea suggest myocardial ischemia and the patient may be unstable.

In this scenario, aspirin is preferred because it directly targets the coronary thrombus process and is safe to give unless there’s a contraindication. Nitroglycerin could worsen hypotension, and diuretics or an antiarrhythmic aren’t addressing the underlying platelet-driven event without specific indications. Therefore acetylsalicylic acid is the best early choice.