Finger to Nose Test
The Finger-to-Nose-Test measures smooth, coordinated upper-extremity movement by having the examinee touch the tip of his or her nose with his or her index finger. On one variation of the test, the examiner holds out his or her finger, about an arm's length from the patient. The patient is instructed to touch the examiner's finger, then his or her own nose. After several successful trials, the patient is then asked to repeat the action more quickly. Moving the target finger can increase the difficulty of the task.
This test is part of a comprehensive neurological examination. It is typically employed as part of coordination testing. The examiner looks for evidence of intention tremor or dysmetria. Dysmetria is evidenced by difficulty in controlling the range of movement. Dysmetria can result in undershooting or overshooting the target