Always test bilaterally for altered sensation. Note the differences in sensory distribution between the segmental nerve dermatomes and the cutaneous peripheral nerve pattern.
The monofilament should be applied to the patient's skin in an up and down pattern, not a stroking pattern.
Image Source: Victoria Squissato
Two-point discrimination test.
Image Source: Victoria Squissato
A 128 Hz tuning fork is applied to the MCP joint of the thumb, to test the patient's vibratory sense.
Image Source: Victoria Squissato
Findings
The monofilament should be applied to the patient's skin in an up and down pattern, not a stroking pattern.
Image Source: Victoria Squissato
Two-point discrimination test.
Image Source: Victoria Squissato
A 128 Hz tuning fork is applied to the MCP joint of the thumb, to test the patient's vibratory sense.
Image Source: Victoria Squissato
Findings
- Diminished cutaneous sensibility to light touch and pin prick in the distribution of the median nerve
- Abnormal two-point discrimination in the distribution of the median nerve
- Decreased vibratory sensation in the thumb, index, and middle fingers