How long does radiation stay in your body after a cat scan?

Radiation from a CT scan typically does not remain in your body; it is absorbed and quickly dissipated. The radiation exposure from a CT scan is instantaneous, and the effects are not cumulative. However, the dose of radiation can vary depending on the type of scan and the area being imaged. Overall, the amount of radiation used in a CT scan is considered safe and is monitored to minimize risks.