Creatine Kinase-MB— Normal Range & What Your Result Means

Normal Creatine Kinase-MB range (CK-MB, ng/mL)

  • Adults0–5 ng/mL

Ranges are typical adult values and vary between labs. Use the range on your own report.

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What is Creatine Kinase-MB (CK-MB)?

Creatine Kinase-MB is measured as part of a cardiac markers panel. Your CK-MB is normal — this fraction is more specific to heart muscle.

What does a high Creatine Kinase-MB mean?

Your CK-MB is elevated, which can indicate heart-muscle injury. It's interpreted alongside troponin and your symptoms.

If markedly elevated: Your CK-MB is markedly elevated — please seek prompt cardiac evaluation.

Understand your whole report, not just one number

A single value rarely tells the full story — Creatine Kinase-MB is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.

Creatine Kinase-MB: frequently asked questions

What is a normal Creatine Kinase-MB level?

A normal Creatine Kinase-MB (CK-MB) level is 0–5 ng/mL for adults. Reference ranges vary slightly between laboratories, so always compare against the range printed on your own report.

What does a high Creatine Kinase-MB mean?

Your CK-MB is elevated, which can indicate heart-muscle injury. It's interpreted alongside troponin and your symptoms.

Related Cardiac Markers tests