BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuLactate dehydrogenase testLDH test; Lactic acid dehydrogenase testLactate dehydrogenase (LDH) is a protein that helps produce energy in the body. An LDH test measures the amount of LDH in the blood. How the Test is Performed A blood sample is needed.Blood sampleVenipuncture is the collection of blood from a vein. It is most often done for laboratory testing.Read Article Now Book Mark Article How to Prepare for the Test No specific preparation is necessary. How the Test will Feel When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging. Afterward, there may be some throbbing or a slight bruise. This soon goes away. Why the Test is Performed LDH is most often measured to check for tissue damage. LDH is in many body tissues, especially the heart, liver, kidney, muscles, brain, blood cells, and lungs.Other conditions for which the test may be done include:Low red blood cell count (anemia) AnemiaAnemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Different type...Read Article Now Book Mark Article Cancer, including blood cancer (leukemia) or lymph cancer (lymphoma) LeukemiaLeukemia is a type of blood cancer that begins in the bone marrow. Bone marrow is the soft tissue in the center of the bones, where blood cells are ...Read Article Now Book Mark Article Normal Results Normal value range is 105 to 333 international units per liter (IU/L).Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the meaning of your specific results. What Abnormal Results Mean A higher-than-normal level may indicate:Blood flow deficiency (ischemia) Heart attack Heart attackMost heart attacks are caused by a blood clot that blocks one of the coronary arteries. The coronary arteries bring blood and oxygen to the heart. ...Read Article Now Book Mark Article Hemolytic anemia Hemolytic anemiaAnemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Normally, red ...Read Article Now Book Mark Article Infectious mononucleosis Infectious mononucleosisMononucleosis, or mono, is a viral infection that causes fever, sore throat, and swollen lymph glands, most often in the neck.Read Article Now Book Mark Article Leukemia or lymphoma Liver disease (for example, hepatitis) Liver diseaseThe term "liver disease" applies to many conditions that stop the liver from working or prevent it from functioning well. Abdominal pain, yellowing ...Read Article Now Book Mark Article HepatitisHepatitis is swelling and inflammation of the liver.Read Article Now Book Mark Article Low blood pressure Muscle injury Muscle weakness and loss of muscle tissue (muscular dystrophy) Muscular dystrophyMuscular dystrophy is a group of inherited disorders that cause muscle weakness and loss of muscle tissue, which get worse over time.Read Article Now Book Mark Article New abnormal tissue formation (usually cancer) Pancreatitis Stroke StrokeA stroke occurs when blood flow to a part of the brain stops. A stroke is sometimes called a "brain attack. " If blood flow is cut off for longer th...Read Article Now Book Mark Article Tissue deathIf your LDH level is high, your provider may recommend an LDH isoenzymes test to determine the location of any tissue damage.LDH isoenzymes testThe lactate dehydrogenase (LDH) isoenzyme test checks how much of the different types of LDH are in the blood.Read Article Now Book Mark Article Risks There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.Other risks associated with having blood drawn are slight, but may include:Excessive bleeding Fainting or feeling lightheaded Multiple punctures to locate veins Hematoma (blood buildup under the skin) Infection (a slight risk any time the skin is broken)Open ReferencesReferencesCarty RP, Pincus MR, Sarafraz-Yazdi E. Clinical enzymology. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 20.Chernecky CC, Berger BJ. Lactate dehydrogenase. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6th ed. St Louis, MO: Elsevier Saunders; 2013:701-702.AllVideoImagesTog Tests for Lactate dehydrogenase test Lactate dehydrogenase testLDH isoenzyme blood testAldolase blood testSynovial fluid analysisCSF analysisRelated Information LDH isoenzyme blood test(Medical Test)Enzyme(Special Topic)Lactic acid test(Medical Test)Stroke(Condition)Heart attack(Condition)Hemolytic anemia(Condition)Mononucleosis(Condition)Liver disease(Condition)Hepatitis(Condition)Muscular dystrophy(Condition)Stroke(In-Depth)Heart attack and acute coronary syndrome(In-Depth)Hepatitis(In-Depth) Review Date: 2/6/2020 Reviewed By: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- © 1997- All rights reserved. A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.Content is best viewed in IE9 or above, Firefox and Google Chrome browser.