Audiology

A hearing-conservation file may contain baseline and periodic audiograms, documented noise exposure, hearing-protection information, follow-up testing, and records of threshold changes. Reviewing those materials together can help establish what was documented during the relevant period rather than relying only on a later hearing assessment.

Hearing-aid evaluations, fitting records, programming information, verification results, and follow-up notes may document measured hearing levels and the amplification selected for an individual. When considered with audiometric testing, those records may also document changes in amplification needs, device settings, or hearing-related concerns over time.

Audiologists can characterize and diagnose audiologic dysfunction and, within their qualifications, may evaluate whether hearing findings are consistent with particular exposure histories or proposed mechanisms of hearing loss. When causation depends on ear disease, anatomical injury, medication effects, or another medical diagnosis, an otolaryngologist or other qualified physician may also be needed.