LDH

serum or EDTA plasma or heparin plasma 0.5 ml

photometry

1 day

• LDH is composed of 5 isoenzymes. It is found in many organs, mainly in liver, in cardiac and skeletal muscle. High concentrations of LDH are also present in red erythrocytes, so that even slight haemolysis in serum or plasma may cause falsely elevated values.
• Elevations occur in case of myopathies, cardiomyopathies and liver diseases.
• The ratio of α-HBDH to LDH can hint at problems of cardiac or skeletal muscle.