Certified Wound Ostomy Nurse (CWON) Practice Test

What physical signs might indicate motor neuropathy?

1. Low blood pressure

2. Ulcers and discoloration

3. Deformities and callus formation

4. Increased sensitivity

The correct answer is: Deformities and callus formation

Motor neuropathy primarily affects the motor neurons that control muscle movements, leading to a range of physical signs. Deformities and callus formation are indicative of motor neuropathy due to the loss of muscle function and strength. When muscles fail to receive adequate nerve stimulation, they weaken and may lead to abnormal posture or foot structure. This change can result in altered weight distribution when walking, causing pressure points that contribute to callus formation. Additionally, deformities such as bunions or hammertoes may develop as a consequence of muscular imbalances caused by neuropathy. These factors make deformities and callus formation a clear indication of motor neuropathy. Other options are less specific to motor issues or stem from other underlying conditions that do not directly imply neuropathy.