Transcription of Audiometry Procedures Manual - Centers for Disease Control ...
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Audiometry Procedures Manual January 2005. TABLE OF CONTENTS. Chapter Page 1 INTRODUCTION .. 1-1. History and Overview of hearing Examinations in 1-1. Basic Principles of Sound .. 1-5. Basic Principles of Audition .. 1-8. Basic Principles of hearing 1-11. REFERENCES .. 1-13. 2 EQUIPMENT .. 2-1. Description of Exam Room in 2-1. Description of Equipment and Supplies .. 2-2. 2-9. Tympanometer .. 2-9. 2-9. Bioacoustic Simulator .. 2-10. Sound Level Meter and Accessories .. 2-10. Start of Stand 2-11. Room 2-11. Start of Stand Calibrations .. 2-13. Recording Serial Numbers .. 2-14. Calibration 2-15. Bioacoustic Simulator Calibration Check .. 2-15. Tympanometer Calibration Check .. 2-17. Audiometer Calibration Checks .. 2-20. Troubleshooting Calibration Problems .. 2-37.
Hearing loss can be caused by a myriad of factors—age, noise exposure (occupational or recreational), developmental syndromes, infectious disease, physical trauma, ototoxic drugs and chemicals—all of which are further influenced by genetic susceptibility.
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