Which term describes the dose to a localized area such as the hands or feet?

Which term describes the dose to a localized area such as the hands or feet?

• A. Whole body dose
• B. Limb dose
• C. Extremities Dose
• D. Organ dose

Answer: (C)

When exposure is confined to a localized area like the hands or feet, the dose is described as extremities dose. Extremities refer to the hands, fingers, feet, and toes, so this term captures the specific region receiving radiation rather than the entire body. This is different from a whole body dose, which averages exposure across the whole body, or an organ dose, which targets a single internal organ. In practice, measuring extremities dose is important for tasks where the hands are closest to sources, often monitored with ring dosimeters to ensure those parts stay within safety limits. While the term limb dose is sometimes used colloquially, extremities dose is the standard phrase used to describe the localized dose to those external body parts.

When exposure is confined to a localized area like the hands or feet, the dose is described as extremities dose. Extremities refer to the hands, fingers, feet, and toes, so this term captures the specific region receiving radiation rather than the entire body. This is different from a whole body dose, which averages exposure across the whole body, or an organ dose, which targets a single internal organ. In practice, measuring extremities dose is important for tasks where the hands are closest to sources, often monitored with ring dosimeters to ensure those parts stay within safety limits. While the term limb dose is sometimes used colloquially, extremities dose is the standard phrase used to describe the localized dose to those external body parts.