Which aspirin instruction is correct for suspected heart attack?

• A. 100 mg swallowed
• B. 300 mg chewed
• C. 75 mg chewed
• D. 500 mg chewed

Answer: (B)

In a suspected heart attack, rapid antiplatelet action is crucial. Chewing aspirin helps speed up its absorption into the bloodstream, so its effect on preventing further platelet clumping happens quickly. The standard acute dose is 300 mg chewed, which gives fast, effective platelet inhibition. Swallowing a small dose or using a higher, unnecessary amount isn’t as effective or safe in an acute setting. A 75 mg dose is generally for long-term prevention, not immediate treatment, and 500 mg chewed is more than needed for this situation. So, chewed 300 mg provides the best balance of rapid onset and appropriate amount.