Your test results may not mean you have a problem. Ask your healthcare provider what your test results mean for you. Levels of CK-MB do not rise in your blood within the first 4 to 6 hours after a heart attack. You may need to have repeated tests to see if you've had a heart attack.
Higher levels of CK-MB may mean that you have had a heart attack or have other heart problems. These include:. This is an infection and inflammation of the heart muscle. This an infection and inflammation of the thin sac that surrounds the heart. Higher levels may also be caused by muscle damage elsewhere in your body, by diseases that affect your muscles, and by trauma to your chest. The test is done with a blood sample. A needle is used to draw blood from a vein in your arm or hand.
Having a blood test with a needle has some risks. These include bleeding, infection, bruising, and feeling lightheaded. When the needle pricks your arm or hand, you may feel a slight sting or pain.
Afterward, the site may be sore. Timing is important. If you have the test too soon after a heart attack, you may have a false-negative result. You don't need to prepare for this test. Tell your healthcare provider about all medicines, herbs, vitamins, and supplements you are taking. This includes medicines that don't need a prescription and any illegal drugs you may use. Search Encyclopedia. CK-MB What is this test? Why do I need this test?
Symptoms of a heart attack often include: Pain or discomfort in the chest, such as a squeezing sensation or feeling of fullness Pain in the neck, back, left arm, or jaw Shortness of breath Lightheadedness or dizziness Nausea or vomiting Sudden sweating Tiredness What other tests might I have along with this test?
What do my test results mean? These include: Myocarditis. There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most symptoms go away quickly.
If your results show you have a higher than normal level of CK, it may mean you have an injury or disease of the muscles, heart, or brain. To get more information, your provider may order tests to check the levels of specific CK enzymes:. Learn more about laboratory tests, reference ranges, and understanding results.
Other blood tests, such as an electrolyte panel and kidney function tests , may be ordered along with a CK test. The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health. Creatine Kinase.
What is a creatine kinase CK test? What is it used for? These diseases include: Muscular dystrophy , a rare inherited disease that causes weakness, breakdown, and loss of function of skeletal muscles.
It mostly occurs in males. Rhabdomyolis, a rapid breakdown of muscle tissue. It can be caused by a serious injury, muscle disease, or other disorder. Why do I need a CK test? You may need a CK test if you have symptoms of a muscular disorder. What happens during a CK test? Will I need to do anything to prepare for the test?
You don't need any special preparations for a CK test. Are there any risks to the test? What do the results mean? To get more information, your provider may order tests to check the levels of specific CK enzymes: If you have higher than normal CK-MM enzymes, it may mean you have a muscle injury or disease, such as muscular dystrophy or rhabdomyolis.
If you have higher than normal CK-MB enzymes, it may mean you have an inflammation of the heart muscle or are having or recently had a heart attack. If you have higher than normal CK-BB enzymes, it may mean you have had a stroke or brain injury. Other conditions that can cause higher than normal CK levels include: Blood clots Infections Hormonal disorders, including disorders of the thyroid and adrenal glands Lengthy surgery Certain medicines Strenuous exercise If you have questions about your results, talk to your health care provider.
Is there anything else I need to know about a CK test? References Cedars-Sinai [Internet]. Los Angeles: Cedars-Sinai; c
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