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

Which method is used to assess sensory neuropathy?

1. Magnetic resonance imaging

2. Semmes-Weinstein monofilaments

3. Electromyography

4. Ultrasound therapy

The correct answer is: Semmes-Weinstein monofilaments

The Semmes-Weinstein monofilaments are specifically designed to assess sensory neuropathy by evaluating a patient's ability to perceive light touch and pressure on the skin. This method is particularly useful in identifying areas of reduced sensation, especially in patients with diabetes or other conditions that may lead to neuropathy. The test involves applying monofilaments of varying thickness to different parts of the foot and assessing the patient's ability to feel them. A failure to respond can indicate sensory loss. In contrast, the other methods listed serve different purposes: - Magnetic resonance imaging is primarily utilized for visualizing internal structures, such as organs and tissues, rather than assessing sensory function directly. - Electromyography measures the electrical activity of muscles to evaluate their function and the health of the motor neurons but does not specifically target sensory nerve assessment. - Ultrasound therapy is used for therapeutic purposes, such as promoting tissue healing and pain relief, rather than for assessing sensory nerve function. The Semmes-Weinstein monofilaments stand out as the most effective and widely used tool for assessing sensory neuropathy in clinical practice.