<prompt> Flipped LDH indicating Myocardial Infarction is represented by:LDH-1 LDH-2LDH-2 LDH-1LDH-4 LDH-5LDH-5 LDH-4  <response>: When LDH-1 is greater than LDH-2, it is referred to as flipped LDH and is indicative of MI. LDH-1 isoenzyme is found primarily in hea muscle and is lesser in concentration than the LDH-2 Isoenzyme which is primarily found in RBC. When the concentration of LDH-1 is observed to be greater than LDH2. It is referred to as flipped LDH and is indicative of Myocardial infarction. LDH has five isoenzymes: LDH-1 LDH-1 is found primarily in hea muscle 17 to 27 LDH-2 LDH-2 is primarily found in Red blood cells 27 to 37 LDH-3 LDH-3 is highest in the lung 18 to 25 LDH-4 LDH-4 is highest in the kidney, placenta, and pancreas 3 to 8 LDH-5 LDH-5 is highest in the liver and skeletal muscle 0 to 5 The LDH test helps determine the location of tissue damage. Thus in Normal ratios LDH-1 is less than LDH-2 and LDH-5 is less than LDH-4. When LDH-1 is greater than LDH-2: It is referred to as flipped LDH. It is indicative of MI. When your LDH-5 is greater than your LDH-4: It could mean damage to the liver or liver disease. This includes cirrhosis and hepatitis. Ref: Harrisons 19th edition 