If a worker receives a total effective dose equivalent exceeding 5 rems within 24 hours, the supervisor is required to:

• A. phone the RHB immediately
• B. phone the RHB within 24 hours
• C. report the findings to the RHB within 30 days
• D. take no action personally

Answer: (B)

Reporting requirements kick in when a worker’s total effective dose equivalent exceeds 5 rems within 24 hours. In that situation, the supervisor must contact the Radiation Health Branch within 24 hours. This timely notification allows the regulatory body to oversee the event, guide any necessary investigations, verify the dosimetry data, and implement corrective actions to prevent recurrence and protect other workers. Waiting longer, such as 30 days, or taking no action would fail to meet regulatory duties and delay safeguards and follow-up.