Hearing Screening Procedures

PURE TONE SCREENING

Ages/Grades: 3 years through school age

Purpose: To identify children with suspected hearing loss.

Description: Having the child listen to a series of pure tones and note whether or not there was a response to each one. Use only “time Locked” not “random” responses.

Equipment: Pure tone audiometer.

Facilities: Quiet room/area, free from visual distractions.

Procedure:

Set Up:

  • Seat the children so they cannot see the front of the audiometer.
  • Remove glasses, hair bands, large earrings, etc.
  • Place hair behind the ears.
  • Instruct the child to raise either hand when a tone is heard.
  • Set selector switch to Right.
  • Set HL dial to 40 dB.
  • Set frequency dial to 1000 Hz.
  • Place the earphones on child's head with the red phone on the right ear and the headband flush to the head.

Screening:

  • Present the 1000 Hz 40 dB tone for 1 2 seconds.
  • Turn HL dial to 20 dB.
  • Present tones at 1000, 2000 and 4000 Hz.
  • Turn selector switch to Left.
  • Present tones at 4000, 2000 and 1000 Hz.
  • Set HL dial at 25 dB.
  • Turn frequency dial to 500 Hz.
  • Present the tone.
  • Turn selector switch to Right.
  • Present the tone.
  • Recheck immediately if the child did not hear one or more tones.
  • Place a checkmark in the proper boxes on the screening form if a child does not respond to the tone(s).

WNL: Child hears all eight tones.

Rescreen: Child who does not hear one or more tones after immediate rescreening. Child should be scheduled for rescreening in 14-21 days.

NOTE: The 500 Hz tone may be eliminated when tympanometry is included or when the ambient noise level is too high.