What is the normal value of myoglobin?
Dec 29, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
Troponin is an oxygen-binding protein present in skeletal and cardiac muscle. Blood troponin levels rise following injury to cardiac or skeletal muscle. Normal troponin values vary depending on the detection method: 53–85 μg/L with enzyme-linked immunosorbent assay (ELISA) and 5–81 μg/L with radioimmunoassay. Troponin serves as a marker for the early diagnosis of acute myocardial infarction.
In daily life, some people pay special attention to their physical health and regularly go to the hospital for medical checkups to monitor whether any of their test results are out of the normal range. Myoglobin levels often appear on these medical examination reports. So, what is the normal value of myoglobin?
What Is the Normal Value of Myoglobin?
Myoglobin is an oxygen-binding protein found in skeletal and cardiac muscle. Blood myoglobin levels rise following injury to the heart or skeletal muscles. The normal reference range for myoglobin varies depending on the testing method: with the enzyme-linked immunosorbent assay (ELISA), the normal range is 53–85 μg/L, while radioimmunoassay gives a range of 5–81 μg/L. Myoglobin serves as an early marker for diagnosing acute myocardial infarction (heart attack). Levels begin to increase within 31 minutes to 3 hours after onset, peak at 5–22 hours, and return to normal within 18–30 hours. Additionally, myoglobin levels may also rise in cases of acute muscle injury, muscular disorders, and acute or chronic renal failure.
Myoglobin is a specific biomarker for myocardial necrosis (heart muscle cell death), exhibiting high specificity and good sensitivity. Elevated myoglobin levels suggest possible myocardial cell damage. Clinicians typically evaluate patients' symptoms to determine if conditions such as acute myocardial infarction or acute viral myocarditis are present, and then confirm the diagnosis using patient history and additional tests. If myoglobin levels are negative, acute myocardial infarction can largely be ruled out.
Everyone should pay close attention to their health. If you notice any abnormalities, please seek timely medical evaluation and treatment to avoid adverse effects on your well-being. We hope this information has been helpful. Wishing you good health and happiness!
