Myoglobin is a protein produced by the muscles of the heart and body necessary for the proper use of oxygen in these muscles. High blood levels are seen within three hours in people who have just had a heart attack (MI ? myocardial infarction). The test is not specific to cardiac injury, but the test is used when MI is suspected as an earlier indicator than other blood tests that are more specific to MI. High myoglobin blood levels are also seen in people with muscle injury, severe trauma, dangerously high body temperatures (malignant hyperthermia), muscular dystrophy, and rhabdomyolysis.
In a medical emergency, step away from this web site and call for emergency help. Remember, we're not doctors and we don't claim to be able to diagnose your condition. The information and services we provide or display here are merely intended to make you a more knowledgeable patient so that you can have smarter conversations with your actual health care providers.