Lactate Dehydrogenase

LDH LD
Serum (SST) U/L

About this test

Ubiquitous intracellular enzyme released on cell death. Non-specific marker of tissue damage. Used in haematology, oncology, and haemolysis assessment.

Reference Ranges

Sex Age Range Notes
All ≥ 18 yrs 135 – 225 Adult (varies between labs)

Clinical Interpretation

High / Increased
Haemolysis, hepatocellular damage, myocardial infarction, pulmonary embolism, malignancy (especially lymphoma, testicular cancer), megaloblastic anaemia.
Specimen
Serum (SST)
Reporting Unit
U/L

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.