Aims of audiometry:
- Analysis of the patients hearing loss. (conductive hearing loss, sensorineural hearing loss or mixed).
- For pre-operative and post-operative evaluation.
- Medico-legal purposes.
- For prescription of hearing aid.
- In malingering patients.
Procedure:
It is carried out in a sound proof room. Air conduction thresholds for frequencies up-to 125, 250, 500, 1000, 2000, 4000 and 8000 Hz and bone conduction thresholds for 250, 500, 1000, 2000 and 4000 Hz are done. The patient is told to raise his finger or give a signal when he appreciates the slightest sound.