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Myoglobin is a protein found in heart tissue and other muscles. It is released into the blood after damage to the heart or other muscles. Damage can occur from a serious event such as a heart attack or a burn.
Myoglobin can be checked with a blood test or a urine test. Levels in the blood will increase within about 3 hours after the damage. Myoglobin can be found in urine for several days.
The myoglobin test is used to look for disease or injury of muscle tissue. The urine test can help check for rhabdomyolysis.
Be sure to tell your doctor about all the medicines you take, even over-the-counter ones.
You may be asked to sign a consent form.
Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. To help you understand the importance of this test, fill out the medical test information form(What is a PDF document?).
The health professional taking a sample of your blood will:
The blood sample is taken from a vein in your arm. An elastic band is wrapped around your upper arm. It may feel tight. You may feel nothing at all from the needle, or you may feel a quick sting or pinch.
It is not painful to collect a urine sample.
There is very little chance of a problem from having a blood sample taken from a vein.
Collecting a urine sample does not cause problems.
Myoglobin is a protein found in muscles. It can be checked with a blood test or a urine test.
These numbers are just a guide. The range for "normal" varies from lab to lab. Your lab may have a different range. Your lab report should show what range your lab uses for "normal." Also, your doctor will evaluate your results based on your health and other factors. So a number that is outside the normal range here may still be normal for you.
Normal in blood:
5-70 ng/mL or 5-70 mcg/L
Normal in urine:
Negative or <20
You may not be able to have the test, or the results may not be helpful, if:
Other tests may be done along with your myoglobin test. Creatine kinase, lactic dehydrogenase, and troponin may also be tested. They can also show if there is damage to muscle tissue.
Fischbach F, Dunning MB III (2015). A Manual of Laboratory and Diagnostic Tests, 9th ed. Philadelphia: Wolters Kluwer Health.
ByHealthwise StaffPrimary Medical ReviewerKathleen Romito, MD - Family MedicineE. Gregory Thompson, MD - Internal MedicineMartin J. Gabica, MD - Family MedicineSpecialist Medical ReviewerAdam Husney, MD - Family Medicine
Current as ofNovember 10, 2016
Current as of:
November 10, 2016
Kathleen Romito, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine & Martin J. Gabica, MD - Family Medicine & Adam Husney, MD - Family Medicine
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