Normal values for myocardial enzyme profile
Sep 13, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
The normal values for cardiac enzyme panel vary depending on the testing method used, so the reference range should be determined according to the values listed on the laboratory report. Generally, the normal value for CK-MB is below 26 U/L, the normal range for CK is 90–200 U/L, and LDH levels should be below 250 U/L. Values outside these ranges indicate an abnormality.
Cardiac enzyme panel refers to a group of cardiac biomarkers including troponin, creatinine t, troponin, creatine kinase (CK), and creatine kinase-MB (CK-MB), collectively known as the cardiac enzyme profile. So, what are the normal values for the cardiac enzyme panel?
Normal Values of Cardiac Enzyme Panel
The normal range for the cardiac enzyme panel varies depending on the testing method used, so reference should be made to the specific values listed on the laboratory report. Generally, the normal value for CK-MB is below 26 U/L, while the normal range for total CK is 90–200 U/L, and lactate dehydrogenase (LDH) levels should be below 250 U/L. Values outside these ranges may indicate abnormalities. However, not all abnormalities have clinical significance. If there is a significant increase in cardiac enzymes, it may suggest an underlying disease.
Additionally, it's important to assess whether the elevations in CK-MB and total CK are proportionate. For example, if both CK-MB and total CK are elevated but the rise in CK-MB is relatively small—specifically, when the ratio of total CK to CK-MB is greater than 10:1—the source of injury is likely skeletal muscle. Conversely, a lower ratio suggests myocardial damage. Furthermore, interpretation should take into account the day of illness onset when the measurement was taken to accurately assess its clinical meaning.
When cardiac enzymes are abnormal, myocardial infarction should be considered. Additionally, intense physical exercise or myocardial ischemia can also cause elevated creatine kinase levels. It is recommended to visit a hospital for an electrocardiogram (ECG). First, stay calm and follow your doctor’s instructions regarding medication. We hope this information helps you. Wishing you good health and happiness!
