pure-tone audiometry
Standard hearing test that measures the softest sounds a person can hear at different frequencies using headphones or bone oscillators.
Full Definition
Pure-tone audiometry is the gold standard for hearing assessment, presenting single-frequency tones through air conduction (headphones) or bone conduction (vibrating device on the skull) to determine hearing thresholds. The test generates an audiogram showing hearing sensitivity across frequencies from 250 Hz to 8000 Hz. Results are plotted on a graph with frequency on the horizontal axis and hearing level in decibels on the vertical axis. This foundational test distinguishes between conductive, sensorineural, and mixed hearing losses and guides treatment decisions.
Usage
Usage note: Always hyphenated when used as a compound modifier; capitalize when referring to the specific test protocol.
In Context
- "The patient's pure-tone audiometry revealed bilateral high-frequency hearing loss consistent with noise exposure." — Clinical assessment report
- "Prior to hearing aid fitting, pure-tone audiometry must be completed within the past six months." — Insurance authorization form