What is a major characteristic of the Total Artificial Heart?

The Total Artificial Heart is recognized primarily for its function as a bridge to transplantation, indicating that it is utilized in patients awaiting a heart transplant. This designation as a bridge to transplantation (BTT) reflects its capability to completely replace the function of the heart for extended periods, allowing patients to maintain a stable condition until a suitable donor heart becomes available.

The other options highlight important aspects but do not accurately depict the primary characteristic of a Total Artificial Heart. While it can be a temporary solution, it is not solely designated for short-term support. Although it is indeed an implantable device, that quality alone does not capture its unique role compared to other forms of mechanical support, such as ventricular assist devices (VADs), which may target only one side of the heart. Hence, the key distinguishing factor is its approval and functionality as a bridge to transplant.