The CK-MB looks at a heart form of creatine kinase (largely replaced by troponin). It is done for: heart attack assessment where troponin is unavailable.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Heart attack assessment where troponin is unavailable.
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Possible heart muscle injury. Low or negative may mean: Normal. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
A heart form of creatine kinase (largely replaced by troponin).
Blood
Possible heart muscle injury.
Normal.
Reference ranges vary by lab, age and sex — always use the range printed on your own report.
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does the CK-MB measure?
A heart form of creatine kinase (largely replaced by troponin).
Why is the CK-MB done?
Heart attack assessment where troponin is unavailable.
Do I need to fast for the CK-MB?
No fasting needed.
What does a high or positive CK-MB mean?
Possible heart muscle injury.
What does a low or negative CK-MB mean?
Normal.
What is the normal range for the CK-MB?
Laboratory-specific; see the reference range on your report.
Why is CK-MB done?
Heart attack assessment where troponin is unavailable.
Do I need to prepare or fast for CK-MB?
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Possible heart muscle injury. Low or negative may mean: Normal. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
SI text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).
Sources: SI health summary (own words); MedlinePlus Lab Tests and CDC as references