Preferred Sample Type. Sample Preparation Centrifuge sample. Samples should be clot-free and free of red cells or other particulate matter. The presence of fibrin may cause erroneous results. Samples should not be repeatedly frozen and thawed. General Information Please note, this is no longer a routine test. Date Record Created Monday, 08 August Higher CK-MB may point more directly to heart damage. Each year millions of Americans go to the emergency room with chest pain, but only a small amount of those people are having a heart attack or other serious, sudden heart problem.
This test helps your healthcare provider figure out if you're having a heart attack. Measuring CK-MB used to be a common tool for diagnosing heart attacks, but healthcare providers use it less often today. Cardiac troponin is now the test of choice for finding a heart attack. This is because cardiac troponin is more specific and more sensitive than CK-MB.
You may need this test if your healthcare provider thinks you are having a heart attack. Symptoms of a heart attack often include:. Pain or discomfort in the chest, such as a squeezing sensation or feeling of fullness. Your healthcare provider may also order a test to measure cardiac troponin CTn. This test is more often used than CK-MB because it more specifically shows heart damage. Your healthcare provider may also order an electrocardiogram ECG. This is done to measure electrical activity in your heart and help diagnose a heart attack.
Test results may vary depending on your age, sex, health history, the method used for the test, and other things. 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. N N respirator mask. Nocturnal Paediatric Oximetry. Nucleated Red Blood Cells. O Oats. Obstructive sleep apnea. OI Cell Cold Agglutinin. Osmolality urination.
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