The otoscope is a diagnostic tool for ear examination. It potentially gives a view of the ear canal and tympanic memberane or eardrum.
Pure tone audiometry is the main hearing test used to identify the hearing threshold levels of an individual at various frequencies and enables the determination of the degree, type and configuration of hearing loss.
Speech audiometry measures an individual’s threshold for speech intelligilbility as well as the measurement of how well an individual is able to understand speech at a level that is comfortable to listen to. Pure tone and speech audiometry together provide the basis for diagnosis and management of hearing loss.
Inhalation of larynx-tracheo-bronchialforeign bodies occurs especially in children between1 and 5 years of age due to the habit of carrying all objects to the mouth. The nature of the foreign body is extremely variable.
Presbiacusia it’s characterized by a progressive deterioration of the capacity to hear and/or understand the verbal message.
Paranasal sinuses are pneumatic cavities located at the level of the facial bones surrounding the nasal pits, with which they communicate through the nasal meati.
“Sudden hearing loss” means a single or bilateral perceptual deafness usually of relevant importance, with sudden onset and unknown etiology.
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