Pure Tone Audiometry Test
Pure-tone audiometry is a diagnostic test used to assess an individual’s hearing sensitivity across various frequencies. It plays a crucial role in identifying the degree and type of hearing loss. During the test, the person wears headphones and responds to tones of different frequencies and intensities.
Audiologists conduct pure-tone audiometry in a soundproof booth to minimize external noise. The test involves presenting pure tones at different frequencies, typically ranging from 250 to 8,000 Hertz, to each ear separately. The individual signals when they hear the tone by pressing a button or raising their hand.
Results are recorded on an audiogram, a graph that depicts the softest sounds a person can hear at different frequencies. This graph helps determine the type (conductive, sensorineural, or mixed) and degree (mild, moderate, severe, or profound) of hearing loss.
Pure-tone audiometry is a fundamental tool for diagnosing hearing impairments, guiding treatment decisions, and fitting hearing aids. Regular audiometric assessments also monitor changes in hearing over time, enabling timely adjustments to interventions and improving overall hearing health.