Certified Rehabilitation Registered Nurse (CRRN) Practice Exam

Which technique is NOT used to promote venous return and control swelling in a residual limb?

1. Serial casting

2. Figure 8 elastic wraps

3. Removable rigid dressings

4. Stump shrinker

The correct answer is: Serial casting

Serial casting is a technique typically utilized for the treatment of conditions that require gradual correction of deformities or positioning, rather than specifically for promoting venous return or controlling swelling in a residual limb. While it can be beneficial in certain rehabilitation contexts, particularly in managing different types of musculoskeletal issues, it does not serve the purpose of enhancing blood flow or reducing edema in the residual limb. In contrast, the other options—figure 8 elastic wraps, removable rigid dressings, and stump shrinkers—are all established methods employed to aid in venous return and minimize swelling. Figure 8 elastic wraps apply compression that helps facilitate venous drainage. Removable rigid dressings can provide stability while also promoting optimal compression to prevent fluid accumulation. Stump shrinkers are designed specifically to apply consistent pressure and contour to the limb, assisting in shaping as well as controlling swelling. Therefore, the role of serial casting distinguishes it from the other techniques focused directly on venous return and limb swelling management.