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Ototoxicity Grading Criteria
| GRADE 1: | 40 dB HL loss at 6000 and/or 8000 Hz |
| GRADE 2: | > 25 dB HL loss at 3000 and/or 4000 Hz |
| GRADE 3*: | > 25 dB HL loss at 2000 Hz |
| GRADE 4*: | ≥ 40 dB HL loss at 2000 Hz |
A loss is defined as a change from baseline at any one frequency
Patient requires hearing aids
