Lactate dehydrogenase is an enzyme found in the blood or body fluids. It is found almost in all tissues because it is a very important component of the energy creating biochemical pathways. When the tissues are damaged, it is released in blood (it is most abundant in heart, kidneys, brain and lungs) There are five types of LDH. They are called isoenzymes characterized by the different amounts found in different tissues. These are LDH-1 Heart tissue and red blood cells LDH-2 White blood cells, lesser in heart and red blood cells LDH-3 Lung tissue LDH-4 White blood cells, kidney, pancreas and lymph nodes LDH-5 Liver, muscles of skeleton
Interpretation: LDH isoenzyme test is needed to find out the localisation of the tissue damage when there is a general increase in total LDH levels Results due to the increased bands may be anemia, kidney disease, liver disease, muscle injury, heart attack, pancreatitis, infectious mononucleosis.
Sample: Arm vein blood. Nonfasting
Working day: Tuesday
Result Time: Consult the laboratory
