Surgical Tech Practice Exam

What type of prosthetic valve requires rinsing to remove glutaraldehyde storage solution before insertion?

1. Mechanical

2. Biological

3. Tissue

4. Stentless

The correct answer is: Tissue

The correct response is based on the specific preparation required for biological valves prior to implantation. Biological valves are often stored in a solution that contains glutaraldehyde, which is used as a preservative. Rinsing these valves before insertion is crucial to remove any residual glutaraldehyde, as this chemical can be toxic to the surrounding tissue and may lead to adverse responses if retained in the prosthetic valve. Mechanical valves, on the other hand, do not require rinsing in the same manner because they are typically not preserved in a solution containing glutaraldehyde. The tissue valves also fall into the same category as biological valves, as they are made from natural tissue and also need rinsing to ensure safety upon implantation. Stentless valves, while they may also use biological materials, are not specifically distinguished by the rinsing requirement related to glutaraldehyde. Thus, the unique characteristic of biological valves requiring rinsing sets the correct answer apart.