All tests · Cardiac Markers · CK-MB

Above the range

What causes a high CK-MB?

Normal range < 5 (or < 5% of total CK) ng/mL (< 5 µg/L SI). Specimen: Serum. See the full CK-MB reference page for critical values and nursing considerations.

Above the range

Common causes of a high CK-MB

  • Myocardial infarction
  • Myocarditis
  • Cardiac surgery or defibrillation

What is the normal range for CK-MB?

The standard teaching reference range for CK-MB is < 5 (or < 5% of total CK) ng/mL in conventional units, or < 5 µg/L in SI units. This value is measured in serum.

CK-MB reference range and specimen details
SpecimenSerum
Conventional range< 5 (or < 5% of total CK) ng/mL
SI range< 5 µg/L
PanelCardiac Markers

Full details, including nursing considerations, on the CK-MB normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.

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