Can one get a heart attack even if his 2d echo is normal?

Heart attack: A normal 2d echo in a patient who is having acute chest pain makes it unlikely the patient is having a heart attack at that time. A normal 2d echo on a random exam does not mean that a subsequent heart attack can't happen.

Muscular function : And ischemia (lack of blood flow) are 2 separate entities...A normal echo cannot predict risk for heart attack.