IMPEDANCE AUDIOMETRY Meaning and
Definition
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Impedance audiometry is a diagnostic test used in audiology to assess the health and function of the middle ear. It measures the acoustic impedance, which is the opposition of the ear to the flow of sound energy, and the compliance or stiffness of the middle ear.
During an impedance audiometry test, a probe is placed in the ear canal and emits sound waves that cause the eardrum to vibrate. By measuring the amount of sound that is reflected back from the middle ear, the test can determine the impedance, or resistance, to the movement of the eardrum caused by changes in air pressure.
The results of impedance audiometry can provide valuable information about the condition of the middle ear, such as the presence of fluid, blockages, or abnormalities that may affect hearing. It is particularly useful in diagnosing conditions such as otitis media, a common ear infection, as well as other conditions like perforated eardrums, tumors, and disorders of the Eustachian tube.
Impedance audiometry is a safe and non-invasive procedure that is often performed on individuals of all ages, from infants to adults. It provides objective measurements of middle ear function, helping audiologists and healthcare professionals to make accurate diagnoses and recommend appropriate treatment plans.
Common Misspellings for IMPEDANCE AUDIOMETRY
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Etymology of IMPEDANCE AUDIOMETRY
The term "impedance audiometry" is a combination of two words: "impedance" and "audiometry".
1. Impedance: The word "impedance" originates from the Latin verb "impedire", meaning "to hinder" or "to impede". In the context of physics and electrical engineering, "impedance" refers to the total opposition that a circuit presents to the flow of alternating current.
2. Audiometry: The word "audiometry" is derived from two Greek roots: "audio" meaning "hear" and "metry" meaning "measurement". Audiometry is the branch of medicine concerned with evaluating hearing ability.
When combined, "impedance audiometry" refers to a technique or procedure used to measure the impedance (resistance) of the middle ear and the associated hearing ability.
