Unit Converter
Creatine Kinase (CK)

SI UNITS (recommended)

CONVENTIONAL UNITS

Synonym

CK, Total CK, Creatine Phosphokinase, CPK, phospho-creatine kinase, EC 2.7.3.2

Units of measurement

nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL)

Creatine kinase (CK) is a dimeric enzyme occurring in four different forms: a mitochondrial isoenzyme and the cytosolic isoenzymes CK‑MM (skeletal muscle type), CK‑BB (brain type) and CK‑MB (myocardial type).

The determination of CK and CK - isoenzyme activities is utilized in the diagnosis and monitoring of myocardial infarction and myopathies such as the progressive Duchenne muscular dystrophy. Following injury to the myocardium, such as occurs with acute myocardial infarction, CK is released from the damaged myocardial cells. In early cases, a rise in the CK - activity can be found just 4 hours after an infarction. The CK - activity reaches a maximum after 12‑24 hours and then falls back to the normal range after 3‑4 days.

SI units Conversion Calculator. Convert Creatine Kinase (CK) level to nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL) . Clinical laboratory units online conversion from conventional or traditional units to Si units. Table of conversion factors for Creatine Kinase (CK) unit conversion to nkat/l, µkat/l, nmol/(s•L), µmol/(s•L), U/L, IU/L, µmol/(min•L), µmol/(h•L), µmol/(h•mL) .

Last updated: February 16, 2025

Created by: Dr. Rajesh Moganti

Reviewed by : Medical Review Board

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