Fisher finger test

Fisher finger test: The fingertips are repeatedly and regularly contacted with the palm of the thumb joint. The normal person can reach 3 to 5 times per second, and the movement is flexible and regular. First make a mark on the lateral edge of the interphalangeal joint of the patient's thumb, and then let the patient show the fingertip to hit this point. Sniper should be continuous and rapid, 3-5 times per second. The fingertip is raised 1.5-2cm, and the thumb is not allowed to move when slamming. Before the patient's examination, cut the nails of the index finger to make it short, to prevent the thumb from being injured or to flip the nail of the index finger. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Tips: Before the inspection, cut the nails of the index finger to make it short, to prevent the thumb from being hurt or to flip the nail of the index finger. Normal value The sniper action is flexible and regular. Clinical significance Abnormal results: If there is cerebellar disease, the finger slamming action is slow, the index finger height is small, the rhythm is irregular, the sniper part is not accurate, the premature stop, or even this action. In the case of the upper cone system, the diencephalon or the basal ganglia, the sniper movement is slow, the amplitude is small, the movement is stiff, and the thumb moves more, and even the wrist joint participates in the movement. People in need of examination: patients with unstable walking, ataxia symptoms or suspected cone system, diencephalon or basal ganglia injury. Precautions Before the inspection: Before the patient is inspected, cut the nail of the index finger and cut it shortly to prevent the thumb from being injured or flipping the nail of the index finger. Requirements for inspection: Do not be too nervous during inspection to prevent the inspection results from affecting. Inspection process First make a mark on the lateral edge of the interphalangeal joint of the patient's thumb, and then let the patient show the fingertip to hit this point. Sniper should be continuous and rapid, 3-5 times per second. The fingertip is raised 1.5-2cm, and the thumb is not allowed to move when slamming. Not suitable for the crowd Inappropriate people: hand injuries, hand nerve damage and other diseases. Adverse reactions and risks Nothing.