Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What does a response of no sensation to a Semmes-Weinstein monofilament test at 5.07 indicate?

1. Normal protective sensation

2. Moderate loss of sensation

3. Loss of protective sensation

4. Total insensate

The correct answer is: Loss of protective sensation

A response of no sensation to a Semmes-Weinstein monofilament test at a calibrated force of 5.07 indicates loss of protective sensation. This particular monofilament is designed to detect the ability to perceive light touch and pressure, which are crucial for protection against injuries. When an individual cannot feel the 5.07 monofilament, it demonstrates that their sensory nerves might not be functioning effectively to alert them to potential harm. In clinical practice, this loss of protective sensation is a critical finding, especially in populations with diabetes or peripheral neuropathies, as it increases the risk of ulcerations and other injuries due to an inability to feel pain or discomfort. Therefore, the response indicates an impaired sensory response, making it essential for clinicians to evaluate the patient's risk for injury and implement appropriate preventative measures.