Figure 2-3. Testing for pupillary reactions.
e. Sensory Function. Testing for sensory function is the most difficult and the
least reliable part of the examination. Perform two tests.
(1) Test for pain. Perform this test using pin pricks in the arms and legs.
Ask the patient to say "sharp" or "dull" after each stimulus and to reply immediately.
This is a test of the patient's response to superficial pain. Usually, a sterile needle with
a sharp point and dull hub on the other end is the instrument used. In a nonpredictable
pattern, touch the patient's skin with one or the other end of the needle.
Figure 2-4. Testing for pain.