What is the purpose of ambulating a post-MI patient multiple times a day?

• A. To reduce the risk of further clot formation
• B. To improve sleep
• C. To cause fatigue
• D. To worsen chest pain

Answer: (A)

Early ambulation after a myocardial infarction is about improving circulation and preventing clot formation. Movement engages the calf muscle pump, which pushes venous blood back to the heart, reducing venous stasis and the risk of deep vein thrombosis and potential pulmonary embolism. It also helps expand the lungs and improve oxygenation, lowering the chance of atelectasis and supporting overall recovery. It isn’t primarily for sleep, and while activity should be tailored to the patient, the goal is safe, progressive mobilization to aid healing rather than to cause fatigue or worsen chest pain.