Lab

LDH Isoenzymes

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LDH Isoenzymes

  • LDH Isoenzyme Types
  1. Types 1 and 2
    1. Cardiac muscle
    2. Red Blood Cells (Erythrocytes)
  2. Type 3
    1. Pulmonary tissue
  3. Type 4 and 5
    1. Striated muscle
    2. Liver tissue
  • LDH Isoenzyme Ratios
  1. Normal
    1. LDH Type 1 < LDH Type 2
    2. LDH Type 5 < LDH Type 4
  2. Abnormal
    1. LDH Type 1 > LDH Type 2
      1. Myocardial Infarction
      2. Hemolytic Anemia
      3. Pernicious Anemia
      4. Renal infarction
    2. LDH Type 5 > LDH Type 4
      1. Liver disease