NREMT Paramedic Cognitive ExamCardiology & ResuscitationEasy
A 58-year-old male is experiencing crushing substernal chest pain radiating to his left arm. He is pale, diaphoretic, and complaining of nausea. His ECG shows ST elevation in leads V2-V4. Which of the following is the most appropriate dose of Aspirin to administer?
- A325 mg orally, chewed.
- B650 mg orally, chewed.
- C162 mg intravenously.
- D81 mg orally.
Show answer & explanationAnswer & explanation
Correct answer: A. 325 mg orally, chewed.
For a patient presenting with an acute myocardial infarction (STEMI, indicated by ST elevation in V2-V4), the recommended dose of Aspirin in the prehospital setting is 162-325 mg, administered orally and chewed, to ensure rapid absorption and antiplatelet effect.
Why the other options are wrong
- B. 650 mg is an excessive dose and not recommended for acute STEMI.
- C. Aspirin is typically administered orally, not intravenously, for this indication.
- D. 81 mg is a prophylactic dose, not sufficient for acute STEMI.
Aspirin for STEMI
Aspirin is an antiplatelet medication that prevents clot formation. It is a cornerstone of immediate treatment for acute coronary syndromes, including STEMI.
- Inhibits platelet aggregation, reducing thrombus formation.
- Administered orally, chewed, for rapid absorption.
- Standard dose for acute STEMI is 162-325 mg.
- Should be given as early as possible unless contraindicated.
Memory trick: Aspirin Chewed, Clot is Screwed!