What is the purpose of a dosimeter in PPE when performing radiology?

• A. A device that covers your face while working with animals.
• B. Lead gloves.
• C. A device that measures the amount of radiation someone is exposed to when performing radiology.
• D. A device that keeps animals from biting you.

Answer: (C)

The main idea is that a dosimeter measures the amount of ionizing radiation a person is exposed to during radiography, so you can monitor and manage safety.

In practice, you wear the dosimeter as part of your PPE to quantify the actual dose you receive while taking X-rays. It usually sits at or near the collar or chest (often under the lead apron) so it can estimate exposure to critical areas like the head, neck, and torso. The device records cumulative dose over a period and is read by the radiation safety program, helping ensure you stay within occupational limits and apply the ALARA principle—keeping exposure as low as reasonably achievable.

This isn’t a protective device itself like a shield (it doesn’t reduce exposure), and it isn’t used to cover the face or protect against bites. Lead gloves and other shielding reduce dose but do not measure it; a dosimeter’s job is to quantify exposure.