What is ENT - What does it mean when someone does the Weber tuning fork test? How is it carried out, and how is it interpreted?
Even though it is not a hearing exam, the Weber test is useful for determining the nature of a person's hearing impairment. The Weber test involves striking a tuning fork and placing the base of the instrument in the centre of the patient's forehead. The use of a tuning fork with a frequency of 512 Hz or 1024 Hz (hertz or Hz: a unit of measurement for cycles per second) is quite common. The first question that the patient is asked is where the tone is perceived, and then the next question is whether the tone is perceived as being harsher in one ear or the other. The tone is louder and localises to the ear that has poorer hearing or is impacted when CHL is present. Patients who have SNHL have a tendency to believe that the tone is stronger in the ear that has normal or unaffected hearing. Patients who have normal hearing or a hearing loss that is bilaterally symmetric will be able to localise the sound to the middle of the cranium.
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