California Certified Nursing Assistant (CNA) Practice Exam

How should a nursing assistant elevate a client's casted limb to properly reduce swelling?

1. Keep it at the same level as the heart

2. Place the casted limb below the level of the heart

3. Place the casted limb above the level of the heart

4. Hold the limb at shoulder height

The correct answer is: Place the casted limb above the level of the heart

Elevating a casted limb above the level of the heart is important for promoting circulation and reducing swelling. This position helps facilitate the return of venous blood and lymphatic fluids from the limb back to the heart, minimizing the risk of edema. When a limb is elevated in this manner, gravity assists in the drainage of excess fluid away from the injured area. This method is a standard practice in nursing care, particularly after an injury or surgery, as it helps decrease swelling and discomfort associated with the condition. By keeping the limb elevated, you can also help maintain better blood circulation to the area as it heals, which is crucial for recovery. Keeping the limb at the same level as the heart can lead to increased swelling, as there is no gravitational assistance to help with fluid return from the limb. Placing the limb below the level of the heart would exacerbate swelling, and holding the limb at shoulder height does not effectively utilize gravity to reduce swelling either. Therefore, raising the casted limb above heart level is the most effective method for managing and reducing swelling in that area.