Final answer:
The nurse should elevate the extremity and apply cool moist packs to the lower extremity for a client with cellulitis.
Step-by-step explanation:
The nurse should elevate the extremity 7.6 to 15.2 cm above heart level as one of the actions to take for a client with cellulitis in a lower extremity. Elevation can help reduce swelling and promote venous return. This can be achieved by placing a pillow or cushion under the affected leg to elevate it.
Another action the nurse should take is to apply cool moist packs to the lower extremity. Cool moist packs can help reduce inflammation and provide relief to the affected area.
Applying warm dry packs initially is not recommended for cellulitis as it can increase blood flow to the area and potentially worsen the infection. Gently massaging the affected extremity is also not advised as it can further spread the infection.