24-hour notification is required if a shallow-dose equivalent to the skin or extremities exceeds what amount?

24-hour notification is required if a shallow-dose equivalent to the skin or extremities exceeds what amount?

• A. 10 rems
• B. 25 rems
• C. 50 rems
• D. 100 rems

Answer: (C)

The rule hinges on reporting significant acute exposure to skin or extremities. A shallow-dose equivalent to the skin or an extremity is the dose to those tissues, and if that dose in a single event exceeds 50 rem, a 24-hour notification is required. This 50 rem threshold aligns with the annual limit for skin and extremities, signaling a notable incident that needs prompt reporting. The other numbers are below or above the regulatory trigger, but 50 rem is the established point that necessitates rapid notification.

The rule hinges on reporting significant acute exposure to skin or extremities. A shallow-dose equivalent to the skin or an extremity is the dose to those tissues, and if that dose in a single event exceeds 50 rem, a 24-hour notification is required. This 50 rem threshold aligns with the annual limit for skin and extremities, signaling a notable incident that needs prompt reporting. The other numbers are below or above the regulatory trigger, but 50 rem is the established point that necessitates rapid notification.