What symptom is most indicative of a worsening condition in a patient with a cast?

Numbness and tingling are highly concerning symptoms in a patient with a cast, as they often signal potential complications like nerve compression or impaired blood flow. When a cast is applied, it is essential to maintain proper circulation to the injured limb, and any sensation changes, such as numbness or tingling, may indicate that the cast is too tight or that there is an underlying issue affecting nerve function.

The presence of these symptoms suggests that pressure on the nerves may be increasing, risking more serious complications, such as permanent nerve damage if not addressed. This reinforces the need for careful monitoring of limb function and sensation in patients with a cast to ensure timely intervention when symptoms arise.

While temperature increase in the limb, skin discoloration, and even changes in pain can be indicative of complications as well, numbness and tingling specifically point to nerve involvement, which is often a more critical situation demanding immediate attention.