Myoglobin, Blood

This test measures Myoglobin levels in the blood. Myoglobin is a protein which helps provide oxygen to the heart and skeletal muscles allowing them to function properly. If the heart or skeletal muscles are damaged, myoglobin is released into the bloodstream. Measuring myoglobin levels can help detect a muscle injury or heart attack. Levels typically peak within 8-12 hours of the injury and return to normal within 24 hours.

The myoglobin test may be ordered when a person has experienced a muscle injury or has a condition such as muscular dystrophy which damages the muscles. It may also be ordered when a person is experiencing chest pains or other symptoms associated with a heart attack. Other conditions such as recent surgery, heavy exercise, cocaine abuse and kidney disease can result in elevated myoglobin levels.

Turnaround for this test is typically 2-4 business days.