Calculate Pure-Tone Average (PTA = average of 500, 1000, 2000, and 4000 Hz thresholds) to classify hearing loss severity and determine hearing aid candidacy per WHO hearing impairment grading.
Enter the values for the scenario you are assessing. Calculate Pure-Tone Average (PTA = average of 500, 1000, 2000, and 4000 Hz thresholds) to classify hearing loss severity and determine hearing aid candidacy per WHO hearing impairment grading. Use the pta audiogram result to inform your calculation.