Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What type of compression therapy involves applying pressure intermittently?

1. Static therapy

2. Dynamic intermittent compression therapy

3. Continuous compression therapy

4. Pneumatic compression therapy

The correct answer is: Dynamic intermittent compression therapy

Dynamic intermittent compression therapy is characterized by the application of pressure that changes over time, alternating between periods of compression and release. This method is particularly effective for improving venous return and aiding in the management of conditions such as lymphedema, venous insufficiency, and post-surgical recovery. The intermittent nature allows for better circulation, as it prevents excessive pressure that can lead to discomfort or complications associated with continuous compression. This therapy utilizes devices that ensure the compression is applied in a controlled manner, enabling the flow of blood and lymphatic fluid while facilitating the removal of metabolic waste from tissues. The dynamic aspect is pivotal because it mimics the natural muscle pump action that occurs during physical activity, thus enhancing lymphatic drainage more effectively than static methods. In contrast, static therapy maintains a constant level of pressure, while continuous compression therapy applies uninterrupted pressure. Pneumatic compression therapy may involve dynamic principles, but it primarily refers to the use of devices that inflate and deflate to generate the compression. Hence, dynamic intermittent compression therapy specifically stands out due to its targeted approach to creating cyclic pressure changes.