This document provides information about masking techniques used during audiometric testing. It defines masking and explains that the goal is to prevent the non-test ear from participating. Interaural attenuation values are discussed as well as when masking is needed for air and bone conduction tests. Types of masking noise, appropriate levels of noise, and risks of undermasking and overmasking are covered.
This document provides an overview of basic hearing evaluation procedures including audiometry and speech testing. It discusses puretone audiometry including air and bone conduction testing. Normal hearing thresholds and different types of hearing loss including conductive, sensorineural and mixed are defined. Common pathologies of the outer, middle and inner ear that can cause different types of hearing loss are described. The document also reviews different audiometric configurations and treatments for various hearing losses.
This document provides guidance on performing speech audiometry tests, including speech reception threshold (SRT), word recognition score (WRS), and speech-in-noise tests. It discusses procedures for determining SRT and WRS, considerations for non-native English speakers and those with hearing loss, and the clinical significance of test results including how they can indicate site of lesion. Masking procedures are also outlined to limit interference between ears during testing.
This document defines different types of hearing loss including conductive, sensorineural, and mixed. It describes the magnitude, type, and configuration of hearing loss. Normal hearing is defined as thresholds ≤15 dB. Degree of loss is categorized as slight, mild, moderate, etc. based on puretone average. Conductive loss shows normal bone conduction but abnormal air conduction with an air-bone gap. Sensorineural loss has equal abnormal air and bone conduction thresholds. Mixed loss has characteristics of both. Configuration can be flat, rising, sloping, or precipitous. Certain conditions require medical referral.
This document discusses audiology concepts including types, severity, and configurations of hearing loss. It describes reasons a child may refer from OAE screening and how ABR thresholds correlate to audiograms. Specific types of hearing loss are defined, including conductive from outer/middle ear disorders, sensorineural from inner ear issues, and mixed hearing loss involving both. Causes, pathologies, and test results for each type are outlined. School hearing screening guidelines and what constitutes normal versus disordered audiometric results are also summarized.
This document provides an overview of acoustics and basic audiometry concepts. It defines key terms like frequency, intensity, pitch and loudness. It explains that frequency is a physical property of sound measured in Hertz, while pitch is the human perception of how high or low a sound is. Intensity is the physical measurement of sound pressure in decibels, while loudness is the human perception of sound intensity. The document also reviews concepts like pure tones, complex sounds, fundamental frequency, harmonics, and resonant frequency. It describes how to perform a basic audiologic assessment, including taking a case history, performing puretone audiometry to test air and bone conduction thresholds, and assessing speech recognition.
This document provides information about masking techniques used during audiometric testing. It defines masking and explains that the goal is to prevent the non-test ear from participating. Interaural attenuation values are discussed as well as when masking is needed for air and bone conduction tests. Types of masking noise, appropriate levels of noise, and risks of undermasking and overmasking are covered.
This document provides an overview of basic hearing evaluation procedures including audiometry and speech testing. It discusses puretone audiometry including air and bone conduction testing. Normal hearing thresholds and different types of hearing loss including conductive, sensorineural and mixed are defined. Common pathologies of the outer, middle and inner ear that can cause different types of hearing loss are described. The document also reviews different audiometric configurations and treatments for various hearing losses.
This document provides guidance on performing speech audiometry tests, including speech reception threshold (SRT), word recognition score (WRS), and speech-in-noise tests. It discusses procedures for determining SRT and WRS, considerations for non-native English speakers and those with hearing loss, and the clinical significance of test results including how they can indicate site of lesion. Masking procedures are also outlined to limit interference between ears during testing.
This document defines different types of hearing loss including conductive, sensorineural, and mixed. It describes the magnitude, type, and configuration of hearing loss. Normal hearing is defined as thresholds ≤15 dB. Degree of loss is categorized as slight, mild, moderate, etc. based on puretone average. Conductive loss shows normal bone conduction but abnormal air conduction with an air-bone gap. Sensorineural loss has equal abnormal air and bone conduction thresholds. Mixed loss has characteristics of both. Configuration can be flat, rising, sloping, or precipitous. Certain conditions require medical referral.
This document discusses audiology concepts including types, severity, and configurations of hearing loss. It describes reasons a child may refer from OAE screening and how ABR thresholds correlate to audiograms. Specific types of hearing loss are defined, including conductive from outer/middle ear disorders, sensorineural from inner ear issues, and mixed hearing loss involving both. Causes, pathologies, and test results for each type are outlined. School hearing screening guidelines and what constitutes normal versus disordered audiometric results are also summarized.
This document provides an overview of acoustics and basic audiometry concepts. It defines key terms like frequency, intensity, pitch and loudness. It explains that frequency is a physical property of sound measured in Hertz, while pitch is the human perception of how high or low a sound is. Intensity is the physical measurement of sound pressure in decibels, while loudness is the human perception of sound intensity. The document also reviews concepts like pure tones, complex sounds, fundamental frequency, harmonics, and resonant frequency. It describes how to perform a basic audiologic assessment, including taking a case history, performing puretone audiometry to test air and bone conduction thresholds, and assessing speech recognition.