A nurse is caring for a client following application of a cast. Which of the following actions should the nurse take first?

A. Palpate the pulse distal to the cast: Assessing circulation is the priority after cast application to detect signs of compartment syndrome or impaired perfusion. A diminished or absent distal pulse may indicate an emergency requiring immediate intervention. B. Place an ice pack over the cast: Applying ice can reduce swelling and discomfort in the first 24 to 48 hours, but it is a supportive measure. It should be done after confirming that circulation is intact. C. Teach the client to keep the cast clean and dry: Client education is important for long-term cast care, but it is not an immediate priority following application. Circulatory checks take precedence to prevent complications. D. Position the casted extremity on a pillow: Elevation helps minimize swelling and promote venous return, but it should be done after confirming that blood flow is adequate and not compromised by the cast.