|Test to be performed - Graphesthesia
Graphesthesia tests the individual’s ability to use sensory input to identify a number or letter drawn onto his/her hand while visually occluded.
Expected findings - The individual is expected to accurately report the drawn letter or number.
Equipment - A blunt object or the health care practitioner’s fingertip (the health care practitioner needs to be mindful of not using his or her fingernails)
- Explain the procedure to the patient with his/her eyes open. For example, “I will be drawing numbers, letters, or shapes on the palm of your hand with my fingertip, and then I will ask you to identify the number, letter, or shape.”
- Demonstrate the procedure with the patient’s eyes open until the patient understands the procedure to be performed.
- The patient closes his/her eyes, or vision is otherwise occluded.
- Slowly draw a number, letter, or shape using your finger or blunt instrument.
- Have the patient identify the stimulus.
- The procedure is repeated 3-5 times or until you are able to determine whether the patient has intact or impaired sensation.
- Document findings.