| work Baa BC Clinical Opinion

Background information

Worker last name First name Middle initial | WorkSafeBC claim number
HOLAND MARK 42647461

Worker current age Worker height Worker weight Worker gender Worker hand dominance
47 5,9" 165.0 Ibs Man Right Handed

Date of injury Job titles
2026-01-25 Relief Control Operator

Mechanism of injury (wording may be cut off due to character count limitation, please review claim for more content)
W is claiming for an acoustic injury due to exposure to a computer fan from January 12, 2026 to January 23, 2026.

Claim accepted for Claim not accepted for
Ear issue

Restrictions and limitations (see Claim Home, Demographics Tab, Restrictions or Limitations cluster screen W5526)

Issue/topic information

Regarding issue/topic (explanation of issue that requires clinical opinion, e.g., working diagnosis, medication review, medical management, etc.)

Biological plausibility

Summary of evidence and findings of fact (e.g., medical/non-medical evidence/info, what's the decision, what's been accepted/not accepted)
W is claiming for a bilateral ear issue he attributes to computer fans behind his workstation while completing
training. W was exposed to the sound for 10 days at close range between January 12, 2026 and January 23,
2026 and at a further range from January 27, 2026 to January 29, 2026. W noted symptoms began on January
19, 2026 as a persistent headache and loss of sleep. Symptoms worsened and on January 23, 2026 W began
experiencing ear pain which was worse in the left ear. W has a pre-existing recurrence of migraines which had
been managed up to this point. On January 27, 2026, W was moved to the front of the classroom, away from the

computer server fans but symptoms persisted and he began missing time fully in the afternoon of January 29,
2026. He has not returned to work as his symptoms continue.

W has received no formal diagnosis beyond ear pain but is awaiting an ENT appointment. Medical records on
file.

By W’s account, the sound did not go beyond 85 dB to be considered damaging, though W noted he attributes
the tonal quality of the sound to be causative of his injury. W completed his own sound analysis and included
photos of the desk arrangement (See Correspondence date February 6, 2026).

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68B86 Workers’ Compensation Board of B.C. (R20/03) Page 1 of 5