CREATINE PHOSPHOKINASE MB; CPK-MB

What this test checks

Measures the heart-specific form of creatine kinase enzyme, which rises when heart muscle is injured (as in a heart attack).

Why do people get this test?

Used alongside Troponin to confirm heart muscle damage. Most commonly ordered in emergency settings.

When you should consider this test

• Chest pain, especially with sweating or arm pain
• Follow-up after a known heart attack
• Doctor evaluating cardiac symptoms

How to prepare

No fasting needed.