Q50 - Audiogram Interpretation

Question: 

Audiogram results from an employee are shown below. There is an average shift of 10db in the left ear. Is it recordable?

Answer:

NO. While the left ear did show a Standard Threshold Shift (STS), the employee’s total hearing level is below 25dB.

1904.10(a)

Basic requirement. If an employee's hearing test (audiogram) reveals that the employee has experienced a work-related Standard Threshold Shift (STS) in hearing in one or both ears, and the employee's total hearing level is 25 decibels (dB) or more above audiometric zero (averaged at 2000, 3000, and 4000 Hz) in the same ear(s) as the STS, you must record the case on the OSHA 300 Log.

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