How should aspirin be administered during a myocardial infarction?

Administering aspirin during a myocardial infarction is crucial for its antiplatelet effects, which can help to prevent further clot formation in the coronary arteries. Chewable aspirin is preferred due to its rapid absorption and the quick action it provides in reducing platelet aggregation. Chewing the tablets helps facilitate faster entry into the systemic circulation compared to swallowing whole tablets, which may take longer to dissolve and be absorbed.

Giving four chewable tablets is in line with the recommended dosing during an acute coronary event. This dosing typically amounts to about 325 mg of aspirin, which is effective in the initial management of a myocardial infarction.

Liquid forms may not be preferred as they are not as commonly available in emergency settings and the chewable tablets are specifically designed for quick absorption. Administering as a whole tablet can delay the drug's effect because it may take longer for the body to break it down. Intravenous administration is also not standard for aspirin in this situation, as the oral route is both effective and sufficient for the immediate needs in the context of a heart attack.