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Periodic Screening (cont…)
ÇDeterioration
of PLH in workers with PLH <10% from baseline
:Compare 3, 4, 6 kHz - (>15 dB difference)
:or >15 dB increase at 4kHz only
:or Schilling (good for general pathology, not NIHL
necessarily)
:or PLH criteria (but what is arbitrary and what scientific?)
