Webhalf-life: [ haf´līf″ ] the time required for the decay of half of a sample of particles of a radionuclide or elementary particle; see also radioactivity . Symbol t ½ or T ½ . WebDefinition The half-life is defined as the time elapsed when the intensity of the radia-tion is reduced to one half of its original value. 36 Figure 3.1. The radiation from a radioactive source decreases with time as shown. ... The biological half-life is rather uncertain as compared to the exact value of the physical half-life.

Definition of

WebDec 14, 2024 · Biological Half-Life. In general, the biological half-life is the time taken for the amount of a particular element in the body to decrease … WebJun 23, 2024 · Half-life in the context of medical science typically refers to the elimination half-life. The definition of elimination half-life is the length of time required for the … raymond swarts md

Half-life - Wikipedia

WebOct 31, 2016 · The biological half-life of a drug is an estimate of the time it takes for the concentration or amount in the body of that drug to be reduced by exactly one half … WebTerminal plasma half-life is the time required to divide the plasma concentration by two after reaching pseudo-equilibrium, and not the time required to eliminate half the administered dose. When the process of absorption is not a limiting factor, half-life is a hybrid parameter controlled by plasma … WebThe term “biological half-life” should not be used instead of the specific terms “plasma half-life” or “serum half-life”. The tissue for which the half-life of a drug is determined should always be specified, e.g., “serum half-life”; the half-life of a drug in muscle, kidney, etc., or in the whole organism can be determined. raymonds vinyards