title: [Macro CK type 2 as a cause of a false increase in CK-MB].
abstract: A case of CK-MB falsely elevated activity due to the presence of a macro CK is reported. The MB quantification showed inferior levels to the pre-established cut-off. The CK isoenzymes electrophoresis showed a type 2 macro CK. We suggest carrying out CK isoenzyme electrophoresis of CK-MB quantification in those cases in which the clinical course or ECG changes do not correlate with the CK-MB values, and in cases presenting low whole CK activity values along with high CK-MB values.
authors.affiliation: Sección de Cardiología, Hospital Joan XXIII, Tarragona.
authors.forename: R
authors.initials: R
authors.lastname: Galera
authors.forename: A
authors.initials: A
authors.lastname: Bardají
authors.forename: X
authors.initials: X
authors.lastname: Raga
authors.forename: A
authors.initials: A
authors.lastname: Vilanova
authors.forename: C
authors.initials: C
authors.lastname: Richart
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002769:Cholelithiasis / Q000175:diagnosis; D004796:Clinical Enzyme Tests; D003402:Creatine Kinase / Q000097:blood*; D004630:Emergencies; D005189:False Positive Reactions; D006801:Humans; D007527:Isoenzymes; D046911:Macromolecular Substances; D008297:Male; D009203:Myocardial Infarction / Q000175:diagnosis
chemical_list: D007527:Isoenzymes; D046911:Macromolecular Substances; D003402:Creatine Kinase
vernacular_title: Macro CK tipo 2 como causa de falsa elevación de la CK-MB.