CHF can be categorized into how many types based on ventricle involvement?

Congestive heart failure (CHF) can indeed be categorized into three distinct types based on which ventricle is involved in the condition. This classification includes right-sided, left-sided, and both-sided heart failure.

Left-sided heart failure occurs when the left ventricle cannot effectively pump blood to the body, which can lead to the pulmonary congestion characteristic of this type. Right-sided heart failure, on the other hand, involves the right ventricle failing to pump blood to the lungs, leading to systemic congestion and symptoms such as peripheral edema. When heart failure affects both ventricles, it is referred to as bi-ventricular heart failure, which complicates the clinical picture and can worsen overall patient outcomes.

Understanding these categories helps in diagnosing and managing CHF appropriately, as the treatment may differ depending on whether one or both sides of the heart are failing. The other options either oversimplify the categorization by limiting it to one or two types or incorrectly include types that do not align with traditional classifications of CHF.