Which sign indicates the need for immediate intervention in a client with a plaster cast?

A sudden increase in pain in a client with a plaster cast is a significant indicator that immediate intervention is necessary. Pain that intensifies unexpectedly can suggest various complications, such as compartment syndrome, which is a serious condition resulting from increased pressure within a muscle compartment. This pressure can compromise blood flow and can lead to tissue damage if not addressed promptly.

The presence of a plaster cast often restricts swelling, and while a certain degree of discomfort is expected following the application of a cast, a sudden and severe increase in pain can signal that something is wrong, such as compromised circulation or nerve function. These situations require urgent evaluation and possibly intervention to prevent further injury or complications.

In contrast, a dry and intact cast, mild itching, and normal skin temperature under the cast are generally signs of proper cast function and do not usually indicate immediate concerns requiring urgent medical attention. These conditions can be monitored and managed in less urgent contexts.