## clearance

in toxicology
https://doi.org/10.1351/goldbook.CT06860
1. Volume of blood or plasma or mass of an organ effectively cleared of a substance by @E02038@ (@M03858@ and excretion) divided by time of @E02038@.
Note:
Total @CT01101@ is the sum of the clearances of each eliminating organ or tissue for a given substance.
2. (in pulmonary toxicology) Volume or mass of lung cleared divided by time of @E02038@; used qualitatively to describe removal of any inhaled substance which deposits on the lining surface of the lung.
3. (in renal toxicology) Quantification of the removal of a substance by the kidneys by the processes of @F02388@ and secretion; @CT01101@ is calculated by relating the rate of renal excretion to the plasma concentration.
clearance, $$^{\Delta V}/_{\Delta t}$$