CAOHC - Council for Accreditation In Occupational Hearing Conservation Exam with Frequently Asked Questions and Verified Answers

CAOHC - Council for Accreditation In Occupational Hearing Conservation Exam with Frequently Asked Questions and Verified Answers Which statement best describes the primary purpose of audiometric testing in occupational hearing conservation programs? A. To diagnose medical ear disease B. To determine eligibility for employment C. To detect early hearing changes due to noise exposure D. To fit hearing aids for workers Correct Answer: C Rationale: Audiometric testing in occupational settings is designed for early detection of noise-induced hearing threshold shifts so that intervention can prevent further loss, not for medical diagnosis or treatment. What is the minimum requirement for a valid baseline audiogram according to occupational hearing conservation principles? A. Must be done after a 24-hour noise-free period B. Must be performed within 30 days of employment C. Must be completed only after hearing protection training D. Must be performed only in a hospital setting Correct Answer: A Rationale: A valid baseline audiogram should be obtained after at least 14 hours (commonly 12–24 hours depending on protocol) of noise-free exposure to avoid temporary threshold shift affecting results.