After falling down the basement steps, a client is brought to the emergency department. X-ray results confirm that the client's right leg is fractured. Following application of a leg cast, which assessment finding warrants immediate intervention by the nurse?

A. A right foot that is pale with sluggish capillary refill suggests compromised circulation, possibly due to compartment syndrome, and requires immediate intervention to prevent tissue damage. B. Circumferential edema of the right foot may be expected after a fracture and casting but does not indicate an immediate complication requiring intervention. C. Reports of throbbing right leg pain are common after a fracture and casting and may be managed with appropriate pain medication but do not necessarily indicate an immediate complication. D. An increased temperature to the lower extremity may be indicative of inflammation but does not necessarily require immediate intervention unless accompanied by other signs of infection or complications.