Which medication should be given first for suspected ACS if there are no contraindications?

Which medication should be given first for suspected ACS if there are no contraindications?

• A. Oxygen only
• B. Aspirin 325 mg to chew
• C. Nitroglycerin 0.4 mg SL
• D. Morphine

Answer: (B)

When treating suspected ACS, the first step is to inhibit further platelet aggregation to limit thrombus growth and improve outcomes. Chewable aspirin 325 mg provides rapid onset of action because chewing allows quick absorption into the bloodstream, so it acts fast to reduce mortality in ACS if there are no contraindications (like active bleeding or allergy). Oxygen is only given if the patient is truly hypoxemic or in distress; giving it to everyone isn’t automatically beneficial and isn’t the first choice. Nitroglycerin helps relieve chest pain and improves blood flow, but it’s typically given after aspirin if there are no contraindications and the patient’s blood pressure is adequate. Morphine is reserved for pain relief if needed after other measures, due to potential side effects and masking of symptoms.

When treating suspected ACS, the first step is to inhibit further platelet aggregation to limit thrombus growth and improve outcomes. Chewable aspirin 325 mg provides rapid onset of action because chewing allows quick absorption into the bloodstream, so it acts fast to reduce mortality in ACS if there are no contraindications (like active bleeding or allergy).

Oxygen is only given if the patient is truly hypoxemic or in distress; giving it to everyone isn’t automatically beneficial and isn’t the first choice. Nitroglycerin helps relieve chest pain and improves blood flow, but it’s typically given after aspirin if there are no contraindications and the patient’s blood pressure is adequate. Morphine is reserved for pain relief if needed after other measures, due to potential side effects and masking of symptoms.