A nurse is teaching a client who has acute pericarditis. Which of the following statements should the nurse include in the client teaching to explain the cause of pericarditis?

Your heart condition is caused by thickening of the ventricular walls and septum.

Your heart condition is caused by inflammation of the membranous sac that encloses the heart.

Your heart condition is caused by excessive stretching of the ventricles.

Your heart condition is caused by compression of the myocardium due to fluid that has accumulated around the heart.