What is Rinne's test?
Rinne test is a diagnostic procedure and a screening tool used to determine the cause of hearing loss. This makes it compared to the perception of the sounds of the patient that is transmitted by the air, unlike the sounds transmitted by the bone guidance by the mastoid process. In the area of otology, doctors and audiologists use Rinne test to detect or exclude conductive hearing loss. When the patient reports that they no longer hear the sound, the tuning fork will immediately move next to the opening of the ear. If the patient continues to perceive the sound, this helps to exclude the presence of conductive hearing loss. When the sound reaches the patient through the air, it is guided in the pinne, ear drum and ossicles that direct the sound to the inner ear and at the same time intensify it. The sound that also makes the bones of the head can bypass these ear mechanisms and transfer directly to the inner ear. The sound of the head bone has a lower volume than the air transmitted by air.
Pokud je funkce ucha normálThe Rinne test will indicate that air guidance causes better sound than bone guide. This is called "positive Rinne". However, in the case of conductive hearing loss, bone management will produce better sound, called "negative rinne".
When performing the Rinne test, the Weber test should also be performed. Weber tests help to detect the presence of sensorineural hearing loss caused by dysfunction vestibuloCochlear nerve, inner ear or parts of the brain that process sound. During the Weber test, the PLACED tuning fork is in the center line of the forehead.
The most common cause of sensorineural hearing loss is abnormalities found in hair cells in cochle. These abnormalities can be caused by external and internal factors. Traumatic noise, such as listening to headphones in a very large volume, is an example of an external factor. An example of an internal factor would be a genetic predisposition to deafness.
If sensorineural hearing loss is present both bone and air guidance areEqually reduced while maintaining a relative difference between bone and air sound. This result is also referred to as "positive Rinne". However, there is a reason for concern, because "false negative rinne" may happen that it is a loss of hearing.
both Rinne and Weber tests are to provide resources to rapid patients who complain about hearing loss. Even the test is not a substitute for a larger and more sophisticated audiometricotestricity. Patients should consult their medical professional for the best options.