Question

Where would you test for C5 dermatome?

1) Shoulder
2) Forearm
3) Palm
4) Upper back

Answer 1

The C5 dermatome is assessed at the lateral shoulder and upper arm using a light touch, which evaluates the sensory pathways of the fifth cervical nerve.

Step-by-step explanation:

To test for the C5 dermatome, a practitioner would typically focus on the lateral (outer) part of the shoulder and upper arm. The sensory fibers of the fifth cervical nerve innervate this area and are responsible for sensation there. During the sensory exam, a test such as the light touch of a cotton-tipped applicator is used to assess whether the patient can perceive touch in this region. This form of testing allows the practitioner to determine whether the sensory pathways associated with the C5 dermatome are functioning properly.