A nurse is caring for a toddler who had a cast applied 2 hours ago due to multiple fractures of the right hand. Which of the following findings should the nurse report immediately to the charge nurse?

Choice A rationale While constant elevation is beneficial for reducing swelling and promoting venous return in a new cast, a child not consistently keeping the arm elevated is a management challenge, not an immediate emergency sign of severe neurovascular compromise. The nurse should reinforce the instruction and assist the parent, but other signs indicate a more urgent situation requiring immediate intervention. Choice B rationale Capillary refill time is a critical assessment of peripheral perfusion and should normally be less than 3 seconds in a child. A refill time of 4 seconds suggests impaired arterial blood flow to the digits, potentially due to swelling and constriction within the rigid cast compartment, indicating an immediate risk of Compartment Syndrome which can cause irreversible tissue damage. Choice C rationale Swelling and bruising are expected findings following a fracture and the application of a cast. Bruising (ecchymosis) results from internal bleeding associated with the trauma, and some swelling (edema) is common. While excessive or rapidly increasing swelling must be monitored, this finding alone is less indicative of acute neurovascular compromise than a prolonged capillary refill. Choice D rationale Post-fracture and casting, a child will likely experience pain and apprehension, leading to reluctance to move the affected limb, a protective mechanism known as guarding. However, the ability to move the digits (wiggle fingers) should be assessed. Inability to move, if accompanied by severe pain and other neurovascular changes, could indicate nerve damage or severe compartment syndrome.