Author: Glossary

  • Dose area product

    In nuclear medicine and radiology, the dose of radiation delivered to a patient or area of tissue multiplied by the area of skin exposed. The DAP gives an estimate of the likelihood of skin damage from a specific dose of radiation. It is measured in gray square centimeters.  

  • Unit dose

    A dose of medicine prepared in an individual packet for convenience, safety, or monitoring.  

  • Tolerance dose

    The dose of a drug or physical agent (such as radiation) that will not cause perceptible or immediate injury. This dose will vary among individuals.  

  • Tissue tolerance dose

    The largest dose, especially of radiation, that will not cause obvious or immediate disfunction in tissues.  

  • Tissue culture infective dose

    Dose that will produce a cytopathic effect in 50% of the cultures inoculated.  

  • Therapeutic dose

    The dose required to produce the desired effect.  

  • Test dose

    A low dose of a medication given to assess its safety or tolerability.  

  • Sublethal dose

    A dose containing not quite enough of a toxin or noxious substance to cause death.  

  • Skin dose

    A radiation dose to the skin including secondary radiation from backscatter. The skin dose, also known as the surface dose, represents the amount of radiation received by the skin surface. In the context of conventional x-ray therapy units, it comprises the cumulative value of the air dose at the specific location along with the contribution…

  • Radiation dose

    Energy (joules) deposited by radiation in 1 kg of body tissue.