The nurse is performing a neurovascular assessment on a client with a new cast applied to the right forearm due to a fracture. Which finding would be most indicative of compartment syndrome?

✓ Correct Answer: Option B

Severe pain unrelieved by analgesics, especially pain that intensifies with passive stretching of the affected muscles, is a hallmark sign of compartment syndrome. This is a surgical emergency that can lead to permanent tissue damage.