Which of the following is a primary cause for worsening cardiac function leading to readmission in heart failure patients?

Progression of ventricular dysfunction is indeed a primary cause for worsening cardiac function in heart failure patients. In heart failure, the heart's ability to pump blood effectively is compromised, typically due to underlying conditions such as coronary artery disease, hypertension, or previous myocardial infarction. As these conditions advance, the heart muscle may weaken further, leading to deteriorating cardiac output and exacerbating symptoms. This progressive nature of heart failure can cause increases in fluid retention, pulmonary congestion, and other complications that often result in hospital readmissions.

The other options listed do not directly contribute to worsening cardiac function in the same way. Regular exercise, for instance, is generally encouraged for heart failure patients as it can improve overall cardiovascular health and enhance functional capacity, provided it is within the patient's tolerance levels. Increased fluid intake could be detrimental in certain contexts, particularly if it leads to volume overload; however, the core issue causing readmissions is typically tied more to the underlying progression of the heart condition rather than dietary influences. Similarly, a high fiber diet can be beneficial for general health and may help manage comorbidities like hypertension or diabetes, but it does not directly cause the deterioration of cardiac function. Therefore, the progression of ventricular dysfunction is indeed the most significant factor associated with worsening