audiogram


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Related to audiogram: pure tone audiogram

audiogram

 [aw´de-o-gram″]
1. a graphic record of the findings by audiometry.
2. the hearing test done by audiometry; it tests the ability to hear pure tones in each ear. A careful and complete audiogram will test both bone conduction and air conduction. A comparison between these two types of conduction can be useful in localizing which part of the hearing mechanism is responsible for any hearing loss: if the loss is due to a problem with the portion of the middle ear that conducts sound from the ear canal to the inner ear, it is a conductive hearing loss; if it is due to the inner ear or the nerve that conducts sound signals to the brain, it is a sensorineural hearing loss. The results of audiograms are usually displayed in graph form; the amount of hearing is tested at different sound frequencies (measured in hertz). Most audiograms go from around 250 hertz to 4000 hertz. Lack of hearing at below 20 decibels on the graph is within the normal range; lack of hearing at above 20 decibels is considered abnormal.

The American Speech-Language-Hearing Association has published guidelines for audiologic screening, which are available at their web site: http://www.asha.com. In addition, the U.S. Preventive Services Task Force, part of the Agency for Healthcare Research and Quality, has recommendations on screening for hearing impairment and notes that there is good evidence that screening of newborns leads to earlier identification and treatment. The recommendations are available through the agency's web site: http://www.ahcpr.gov.

au·di·o·gram

(aw'dē-ō-gram),
The graphic record drawn from the results of hearing tests with an audiometer, which charts the threshold of hearing at various frequencies against sound intensity in decibels.
[audio- + G. gramma, a drawing]

audiogram

(ô′dē-ə-grăm′)
n.
1. A graphic record of hearing ability for various sound frequencies that is used to measure hearing loss.
2. The procedure performed to produce such a record.

audiogram

[ô′dē·əgram′]
Etymology: Gk, audire + gramma, record
a chart showing the faintest level at which an individual is able to detect sounds of various frequencies, usually in octaves from 125 Hz to 8000 Hz. See also audiometry.

audiogram

A recording of hearing measured over a range of sound frequencies, usually from 100 Hz to 800 Hz. The audiogram is a plot of tone intensity in decibels on the vertical axis (0 to 80 dB) and frequency on the horizontal axis (250 to 4000 Hz). The sensation of sound results from the transmission of vibrations at a certain frequency—sound waves—which pass through air (air conduction) and craniofacial bones (bone conduction).

audiogram

Audiology A test in which hearing is measured over a range of sound frequencies. See Pure tone audiometry.

au·di·o·gram

(aw'dē-ō-gram)
The graphic record drawn from the results of hearing tests with the audiometer; charts the threshold of hearing at various frequencies against sound intensity in decibels.
[L. audio, to hear + G. gramma, a drawing]

audiogram

A record of the sensitivity, or threshold, of hearing at different frequencies.

Audiogram

A chart or graph of the results of a hearing test conducted with audiographic equipment. The chart reflects the softest (lowest volume) sounds that can be heard at various frequencies or pitches.
Mentioned in: Audiometry

au·di·o·gram

(aw'dē-ō-gram)
The graphic record drawn from the results of hearing tests with the audiometer.
[L. audio, to hear + G. gramma, a drawing]

audiogram (ô´dēəgram),

n a graphic summary of the measurement of hearing loss showing the number of decibels lost at each frequency tested.
References in periodicals archive ?
The iPhone uHear PTAs in all three settings were compared with the formal audiogram PTAs, where the PTA is calculated as a mean of thresholds (hearing in dB) at 500, 1 000, 2 000 and 4 000 Hz.
The patient's actual baseline audiogram (solid line) would be provided on the same graph with gray shading indicating the "speech banana.
Patients in the control group had normal tympanogram and audiogram values and did not present any previous episode of otitis.
Often, the audiogram needs to be repeated to ensure accurate results.
A pure tone audiogram showed bilateral symmetrical mixed hearing loss.
We therefore undertook this study to find out or investigate the type and pattern of audiogram in cleft lip and palate subjects attending a speech camp, the average degree of hearing loss and its relation to the side of cleft and to assess the acoustic immitance findings and compare its relation to the otological evaluation.
Audiogram revealed apparent hearing recovery (right: 35 dB; left: 50 dB with 1,000 Hz).
Pre- and postconcert audiograms were compared, and the data were analyzed using a multinomial probability model to determine audiogram frequency test-retest variability.
Keywords: hearing, investigation, Fowler, audiogram
Harry will also have had a medical ( a 20-minute consultation with a doctor, an audiogram and checks on his weight, blood pressure and sight.
Too often, Sailors visit medical and find out in an audiogram their heating has degraded.
Completely-in-the-canal (CIC) aids, such as Bill Clinton has chosen, are the smallest and least visible, yet they pack enough power for a wearer whose audiogram reveals a mild to moderately severe hearing loss.