(ARS) The acute radiation syndrome is a form of radiation sickness. An acute radiation syndrome can be developed after the exposition to a high radiation dose received in a short period of time (e.g., x-rays or gamma rays). ARS subsyndromes include hematopoietic, cutaneous, gastrointestinal, and neurovascular diseases. The reaction will vary with dose and factors like age, medical co-morbitdity and immunosuppression.

Added filtration refers to filters, used in addition to the inherent filtration.

The administered activity is the amount of radioactive material (dose) given in diagnostic or therapeutic procedures.

Administration in medical imaging refers to the administration of contrast agent (dye) or radioactive material (radiopharmaceutical) into the body by injection, oral administration or by other route.

The administrative dose guidelines are the predetermined value of radiation dose to workers, below the dose limit (administrative level), which triggers a specific course of action when the dose value is exceeded, or is expected to be exceeded.

See also Medical Internal Radiation Dose Committee, Food and Drug Administration, Material Safety Data Sheet, Annual Dose Limit, Air Kerma, Supervised Area and Drug Development and Approval Process USA.