What do the results mean?Higher than normal LDH levels usually means you have some type of tissue damage or disease. Disorders that cause high LDH levels include:AnemiaKidney diseaseLiver diseaseMuscle injuryHeart attackPancreatitisInfections, including meningitis, encephalitis, and infectious mononucleosis (mono)Certain types of cancer, including lymphoma and leukemia. A higher than normal LDH level may also mean treatment for cancer is not working.Although the test can show if you have tissue damage or disease, it does not show where the damage is located. If your results showed higher than normal LDH levels, your provider may need to order more tests to make a diagnosis. One of these tests may be an LDH isoenzyme test. An LDH isoenzyme test measures different forms of LDH. It can help your provider find out about the location, type, and severity of tissue damage.If you have questions about your results, talk to your health care provider.Learn more about laboratory tests, reference ranges, and understanding results.
