Hearing Tests: Results
Results
A hearing test is part of an ear examination that evaluates a person's ability to hear.
| Normal |
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| Abnormal |
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Sound is described in terms of frequency and intensity. Your hearing threshold is how loud the sound of a certain frequency must be for you to hear it.
- Frequency, or pitch (whether a sound is low or high), is measured in vibrations per second, or hertz (Hz). The human ear can normally hear frequencies from a very low rumble of 16 Hz to a high-pitched whine of 20,000 Hz. The frequencies of normal conversations in a quiet place are 500 to 2,000 Hz.
- Intensity, or loudness, is measured in decibels (dB). The normal range (threshold or lower limit) of hearing is 0 to 25 dB. For children, the normal range is 0 to 15 dB. Normal results shows that you hear within these ranges in both ears.
The following table relates how loud a sound must be for a person to hear it (hearing thresholds) to the degree of hearing loss for adults:
| Hearing threshold in decibels (dB) | Degree of hearing loss | Ability to hear speech |
|---|---|---|
0–25 dB | None | No significant difficulty |
26–40 dB | Mild | Difficulty with faint or distant speech |
41–55 dB | Moderate | Difficulty with conversational speech |
56–70 dB | Moderate to severe | Speech must be loud; difficulty with group conversation |
71–90 dB | Severe | Difficulty with loud speech; understands only shouted or amplified speech |
91+ dB | Profound | May not understand amplified speech |
| Last updated: | April 30, 2007 |
|---|---|
| Author: | Monica Rhodes |
| Reviewed By: | Kathleen Romito, MD - Family Medicine, Charles M. Myer, III, MD - Otolaryngology |
| Editors: | Kathleen M. Ariss, MS, Tracy Landauer |
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