International Licensing Examination (ILE) Practice Test

A gradually sloping audiogram shows:

1. Flat thresholds across all frequencies

2. A decline in thresholds at about 5-10 dB per octave in lower frequencies

3. A decline in thresholds at about 5-10 dB per octave in higher frequencies

4. No significant change in thresholds

The correct answer is: A decline in thresholds at about 5-10 dB per octave in higher frequencies

A gradually sloping audiogram typically indicates that a person's hearing thresholds decline progressively at higher frequencies. This means that as the frequency increases, the threshold for hearing that sound becomes higher, requiring louder sounds for the individual to perceive them. The specific nature of this slope, which might occur at around 5-10 dB per octave, reflects a gradual yet significant change in auditory sensitivity at the elevated pitches. In the context of the options provided, a decline in thresholds at higher frequencies is characteristic of many types of hearing loss, including age-related hearing loss and noise-induced hearing loss. This pattern is essential for audiologists to identify and diagnose specific hearing conditions, as it helps to guide potential interventions or treatments. The other options describe situations that do not accurately represent a gradually sloping audiogram. Flat thresholds would indicate no noticeable change across frequencies, while a decline in the lower frequencies or no significant change in thresholds does not align with the gradual slope described. Understanding this pattern is critical for effective hearing assessments and management.