Which of the following is NOT important to inquire about when evaluating risk for cardiomyopathy?

When evaluating risk factors for cardiomyopathy, certain elements are crucial in assessing the patient's health history. Options such as syncope with exercise, congenital malformations, and family history of sudden death can indicate significant underlying cardiac issues or genetic predisposition that are relevant in the context of cardiomyopathy.

Syncope with exercise is particularly concerning because it may suggest an arrhythmic event or another cardiac malfunction that could be associated with cardiomyopathy. Similarly, congenital malformations can indicate a predisposition to cardiac issues and are important for understanding potential inherited conditions that lead to cardiomyopathy.

Family history of sudden death is also critical because it can point to genetic syndromes or conditions that increase the risk of cardiomyopathy, making it an essential part of the evaluation.

In contrast, a history of benign patent ductus arteriosus (PDA) is generally not associated with the development of cardiomyopathy. While PDA represents a congenital heart issue, it is often asymptomatic and can close on its own or may not pose significant risk factors for heart muscle disease, making it less relevant when evaluating the specific risk factors for cardiomyopathy.