Hearing impairment physical examination: Difference between revisions

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==Overview==
==Overview==
Physical exam along with [[History and Physical examination|history]] aid in the definitive diagnosis of hearing loss. [[Physical examination|Physical exam]] tests, such as the finger rub and whisper tests and some other methods as described below, abnormities in these tests help guide diagnosis.
Physical exam along with [[History and Physical examination|history]] aid in the definitive diagnosis of hearing loss. [[Physical examination|Physical exam]] tests, such as the finger rub and whisper tests and some other methods as described below, abnormities in these tests help guide diagnosis.
==Physical Examination==
===Ear<ref name="pmid33253610" />===
*[[Weber test|Weber's tuning fork testing]]
*[[Rinne test|Rinne's tuning fork testing]]
*''Finger rub''
*''Whisper test''
*''Handheld [[audiometer]]''
*''Mobile apps and smartphones [[audiometer]]''
*
{| class="wikitable"
!''Finger rub''
!''Whisper test''
!''Handheld audiometer''
!''Mobile apps and smartphones audiometer''
!Weber's tuning fork testing
!Rinne's tuning fork testing
|-
|Examiner gently rubs fingers together close to the patient's ear.<br />
|Examiner stands at arm's length (approximately 24 inches) behind the patient. The patient blocks 1 ear himself. Examiner whispers 5-6 letters/number combinations.<br />
|Examiner holds device in patient's ear one at a time. Patient indicates awareness of each tone.
|The advancement of science has led to the development of mobile technology-based screening options, such as the use of different mobile apps (for example, uHear, Mimi) and smartphone or tablet-based portable audiometers that can be connected to perform screening for hearing impairment.
|Strike a tuning fork and place it on the middle of the forehead. A
normal test produces sound on both sides (no lateralization).
|Strike a tuning fork and place it on the [[Mastoid process|mastoid]] bone behind the ear. When the patient indicates no further sound, move the still-vibrating
fork to the ear. In a normal test, the patient will still hear air-conducted
sound (air conduction will be better than bone conduction). AC > BC
|-
|A positive result is a failure to identify rub in ≥2 of 6 attempts.
|The positive result is failure to repeat ≥3 of the 6 combinations
|Positive result is failure to identify either the 1000- or 2000-Hz frequency in both ears or the 1000- and 2000-Hz frequencies in 1 ear.
|They generally require supra-aural headphones for monitoring.
|In unilateral
[[Conductive hearing loss|conductive]] loss, the sound will be greater in the affected ear. In [[Sensorineural hearing loss|sensorineural]]
hearing loss, the sound will lateralize to the better-hearing ear.
|With [[Conductive hearing loss|conductive]] loss, the patient will not hear the air-conducted sound. This AC< BC.
|}
*Abnormalities of the [[tympanic membrane]] on inspection, such as [[scarring]] suggest a history of [[Middle ear|middle ear disease]], and a visible [[Perforated eardrum|perforation]] or [[Cerumen impaction|cerumen]] impaction may suggest conductive hearing loss.


==Physical Examination==
==Physical Examination==
Line 53: Line 10:
*[[Weber test|Weber's tuning fork testing]]
*[[Weber test|Weber's tuning fork testing]]
*[[Rinne test|Rinne's tuning fork testing]]
*[[Rinne test|Rinne's tuning fork testing]]
*''Finger rub''
*Finger rub
*''Whisper test''
*Whisper test
*''Handheld [[audiometer]]''
*Handheld [[audiometer]]
*''Mobile apps and smartphones [[audiometer]]''
*Mobile apps and smartphones [[audiometer]]
*
*



Latest revision as of 09:36, 6 May 2021

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief:

Overview

Physical exam along with history aid in the definitive diagnosis of hearing loss. Physical exam tests, such as the finger rub and whisper tests and some other methods as described below, abnormities in these tests help guide diagnosis.

Physical Examination

Ear[1]

Finger rub Whisper test Handheld audiometer Mobile apps and smartphones audiometer Weber's tuning fork testing Rinne's tuning fork testing
Examiner softly rubs two fingers together close to the patient's ear.
Examiner stands at arm's length approximately 24 inches, behind the patient. The patient blocks 1 ear himself. Examiner whispers 5-6 letters/number combinations.
Examiner holds audiometer inside patient's ear one at a time. Patient indicates awareness of each tone. The advancement of science has led to the development of mobile technology-based screening options, such as the use of different mobile apps (for example, uHear, Mimi) and smartphone or tablet-based portable audiometers that can be connected to perform screening for hearing impairment. Strike a tuning fork and place it on the middle of the forehead. A

normal test produces sound on both sides (no lateralization).

Strike a tuning fork and place it on the mastoid bone behind the ear. When the patient indicates no further sound, move the still-vibrating

fork to the ear. In a normal test, the patient will still hear air-conducted

sound (air conduction will be better than bone conduction). AC > BC

A positive result is a failure to identify rub in two or more than two times of 6 attempts. The positive result is failure to repeat ≥3 of the 6 combinations Positive result is failure to identify either the 1000- or 2000-Hz frequency in both ears or the 1000- and 2000-Hz frequencies in 1 ear. They generally require special supra-aural headphones for monitoring. In unilateral

conductive loss, the sound will be greater in the affected ear. In sensorineural

hearing loss, the sound will lateralize to the better-hearing ear.

With conductive loss, the patient will not hear the air-conducted sound. This AC< BC.

References

  1. Nieman CL, Oh ES (2020). "Hearing Loss". Ann Intern Med. 173 (11): ITC81–ITC96. doi:10.7326/AITC202012010. PMID 33253610 Check |pmid= value (help).