Which is a common feature of therapy for congenital cardiac defects?

Using diuretics to manage fluid levels is a common feature of therapy for congenital cardiac defects. Many congenital heart defects can lead to heart failure or fluid overload, as the heart may not effectively pump blood due to its structural issues. In such cases, diuretics are utilized to help remove excess fluid from the body, thereby decreasing the workload on the heart and alleviating symptoms associated with fluid retention, such as edema and difficulty in breathing.

This approach is supportive and helps stabilize the patient before more definitive treatments, such as surgery, if necessary. Diuretics can improve the patient's quality of life and are a critical part of medical management in congenital cardiac cases, especially in infants and children.

Other options, like administering steroids, focusing solely on nutrition, or immediate invasive surgery, do not generally apply as broadly in the therapeutic management of congenital cardiac defects. While each might have its place depending on the specific defect and clinical situation, they are not as universally recognized as diuretics in the context of fluid management.