OIPC INV-F-26-01595 / WCB-2026-0897 Page 25 of 34

Please comment on the biological plausibility of this sound exposure aggravating,
accelerating, or activating a pre-existing migraine condition.

Create date 1/29/2026 1:23 PM 2 ¢ #10B-1035 Coluinbia St,
Person iD am ‘| on New Westminster, BC VAM 6H6
q oi P;604-526-9717 F:604-525-0605

First name Mark

Otoscopy: f
Right Ear: (/Iclear | | POC f JOther,
Left Zar: [Jelear | } POC [ ] Other

The worker is a Relief control operator. He was completing a training course and reported
exposure to noise from two computer server fans located behind his workstation from
January 12 to January 23, 2026. He reported the onset of a persistent headache and loss of