In which of the following diseases or conditions is the activity of the heart muscle restricted by an external force?

Question

Quizplus · Accepted Answer

When a large quantity of fluid accumulates rapidly in the pericardium, this pericardial effusion can restrict the pumping action of the heart. Pericardium effusions accumulate rapidly in many diseases or conditions (e.g., when the myocardium ruptures or when metastatic cancer grows inside the pericardial sac). The T wave of the electrocardiogram is a representation of the repolarization of the heart. T wave inversions can be seen in several conditions, including myocardial ischemia or left ventricular hypertrophy. A soft diastolic blow at the base of the heart is a murmur heard in people with aortic regurgitation.

In Which of the Following Diseases or Conditions Is the Activity