How long does radioactive material stay in your body?

How Long Does Radioactive Material Stay in Your Body?

Radioactive material can stay in your body for varying amounts of time, depending on the type of material and how it was administered.

Targeted radiotherapy utilizes radioactive substances that attach to specific cells. Retention time varies considerably; some isotopes remain for mere hours, while others persist for days, their duration contingent upon the specific radioisotope employed in the treatment.

Diagnostic imaging procedures, such as PET scans and bone scans, use radioactive materials to create images of the body. The radioactive materials used in these procedures are typically eliminated from the body within a few hours or days.

Radiation therapy uses radioactive materials to kill cancer cells. The radioactive materials used in radiation therapy can stay in the body for weeks or months.

The amount of time that radioactive material stays in your body depends on the following factors:

• The type of radioactive material
• The amount of radioactive material
• How the radioactive material was administered
• Your individual metabolism

Radioactive materials can be harmful to your health, so it is important to follow your doctor's instructions carefully when you are receiving any type of treatment that involves radioactive materials.