title: Clinical enzymology. 1. Enzymes and isoenzymes: sample and patient variables.
abstract: Enzyme determinations are among the most commonly ordered laboratory tests and are valuable diagnostic aids. For the results to be useful, the sample must be processed and stored properly and patient variables, including age, sex, medication history, and exercise status, must be considered. Isoenzyme determinations are helpful in specific situations.
mesh_terms: D000293:Adolescent; D004796:Clinical Enzyme Tests / Q000592:standards; D004798:Enzymes / Q000378:metabolism; D005260:Female; D006801:Humans; D007527:Isoenzymes / Q000378:metabolism; D008297:Male; D008875:Middle Aged
chemical_list: D004798:Enzymes; D007527:Isoenzymes