7. Which of the following is true regarding stunned myocardium?

A. Stunned myocardium frequently becomes permanently dysfunctional.

B. Stunned myocardium frequently returns to normal minutes to hours after revascularization.

C. Stunned myocardium occurs when significantly reduced blood flow effects a segment of the myocardium causing dysfunction on a chronic basis.

D. Choices B and C are correct.

E. None of the above are correct.