Occupational Hearing Loss, Noise Induced Hearing Loss, Master Calculator

*Hearing Impairment Projection Calculator:*

	All frequencies must be filled in with values in dB.		If hearing threshold is greater than 100 dB enter 100 dB.		If hearing threshold is less than zero dB enter 0 dB.		Patient's age must be greater than 18 yrs to calculate presbycusis.

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Enter Patient's Age at time of Audiogram: Enter Patient's Age for the Projected Audiogram: Select Sex of Patient Male Female Directions: Age is entered in years with up to two decimal points. To calculate age from the patient's birth date to the audiogram's test date, use the "Find Years From Dates" screen button. If the Projected Audiogram's age is left blank only the hearing impairment for the Initial Audiogram is calculated.			Select Handicap Equation AAO 1979 AAOO 1959 NIOSH-FECA 1972 NIOSH 1997 British Society of Audiology Wisconsin Oregon Ireland Comparison of All Equations (Initial Audiogram Only) Presbycusis & Test Projection Handicap Formula Definitions Terms of Calculator Use			Select Presbycusis Equation Robinson Sutton's Spoor's Equations Project Male with Female Presbycusis Data Adding Noise HL & Presbycusis Use ISO 1999 Compression Factor. Reduce Offset By 50%.
						Calculate Hearing Impairment & Projection

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Hearing Handicap and Presbycusis Calculator
Select from eight handicap and two Presbycusis equations

Occupational Hearing Loss Lecture PDF

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