revive test

The re-vibration test is a method of determining whether there is a re-vibration phenomenon by instrument inspection. Some elderly patients are whispered, and they feel uncomfortable when they are loud. This phenomenon is that the increase in loudness caused by the increase in sound intensity is not commensurate. It is called re-vibration in medicine. The binaural loudness balance test first measures the patient's two-ear pure tone hearing threshold, selects the frequency of the two ear hearings to be more than 20 dB, increases the sound intensity of one ear every 10 to 20 dB, and adjusts the sound intensity of the other ear to two. The ear feels the same when the loudness is the same. Basic Information Specialist Category: Otolaryngology Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Do not tamper with the subject. Normal value The subjects listened for a total of 20 increases, and each time they heard it, the score was 5%, and the total score below 30% was normal. Clinical significance Abnormal results: 1. In the binaural alternating loudness balance test, the right ear hearing threshold is 0 dB and the left ear hearing threshold is 40 dB. When the sound intensity of the right ear is increased by 20 db, the left ear only needs to increase the sound intensity by 10 dB from its hearing threshold (40 dB), and the loudness of the two ears is equal. This indicates that there is loudness reverberation, indicating the presence of cochlear lesions. 2. In the short-increment sensitivity index test, the subjects listened to a total of 20 increasing sounds, and each time they heard one, the score was 5%, and more than 70% of them were positive for the re-vibration test, suggesting the presence of cochlear lesions. Patients with a hearing loss of 20 to 50 dB (HL) in the bins should be examined. Precautions Taboo before inspection: Wash your ears. Taboo when checking: 1. Choose a quiet environment. 2. The hearing difference between the two ears is more than 20dB. 3. Do not tamper with the subject. 4. Increase the hearing threshold of one ear to be slow. Inspection process The method of re-vibration test can be divided into two categories: one is the direct test method, and the binaural loudness balance test is to first measure the patient's two-ear pure tone hearing threshold, and the frequency of the two-ear hearing difference is more than 20 dB, and the frequency is increased every 10-20 dB. The sound intensity of the ear, and the sound intensity of the other ear is adjusted step by step until the loudness felt by both ears is the same. The other is the indirect test method. The short incremental sensitivity index test uses a pure tone of 1000 Hz and the intensity is 20 dB above the threshold. The amplitude modulation device is used to make the sound intensity appear 1 dB increment in short time every 5 seconds (the rise and fall times are 50ms, lasting 200ms), the subject listened to a total of 20 increased sounds, each time I heard it, scored 5%, the total score below 30% was normal, 35~65% was suspicious, and more than 70% were re-vibration test Positive, suggesting the presence of cochlear lesions. Not suitable for the crowd Unsuitable for people: patients with conductive sputum and neuropathic sputum.