Hearing Screening Online Training Program
Using Standard Audiometry
The Two Methods of Pure Tone Audiometric Hearing Screening
The two methods of pure tone audiometric hearing screening include either the
- standard technique where the child raises his or her hand to indicate s/he has heard the screening tone, or
- play audiometry where the child places a toy in a bucket to indicate s/he has heard the screening tone.
Many children by the age of 3 ½ years have the ability to raise their hand in response to screening tones. However, as the method of pure tone audiometry that the screener should use for each child depends on the child’s developmental level, each child should be individually assessed for his or her ability to perform pure tone audiometry.
The technique of standard pure tone audiometry will first be discussed and play audiometry will be discussed in the next section after standard pure tone audiometry.
Standard Pure Tone Audiometric Hearing Screening
Ages: 3 or 4 years through 20 years. If an infant did not receive a newborn hearing screen, or is at risk for early or late-onset hearing loss, it is recommended that objective screening be performed at age 3.
Purpose: To identify children who may have hearing loss.
Frequencies: 500, 1000, 2000, 4000 Hz.
- The audiometer is the gold standard instrument for hearing screening; the pure tone sound it creates is unlike any other sound in the environment
- The pitch (or frequency) of the tone is expressed as Hertz (Hz)
- The loudness of the tone (or intensity) is measured in decibels (dB)
Supplies: Quiet room free from distractions, audiometer, child size table and chair, C&TC documentation form [Attention: By selecting the link above you will be leaving the Minnesota Department of Health Web site.] or medical chart, hearing screening cue cards, and pens.
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