LDH (Lactate Dehydrogenase)
Enzyme present in many tissues. Released when cells are damaged. Elevated in hemolysis, MI, liver disease, and malignancies.
Test Information
Reports In
Same day (6 hours)
Parameters
1
Requisites
Blood Sample
Sample Type
Blood
Measures
Serum LDH level
Identifies
Tissue damage, hemolysis, myocardial infarction, liver disease, lymphoma, some cancers
What is the LDH Test?
Lactate Dehydrogenase (LDH) is an enzyme found in nearly every cell of the body. When cells are damaged or destroyed, LDH leaks into the bloodstream. Elevated LDH is a non-specific marker of tissue damage — it can indicate problems in the liver, heart, muscles, kidneys, lungs, or blood cells. It's particularly useful in monitoring cancer treatment and hemolytic conditions.
Why Should You Take This Test?
LDH is a nonspecific marker of cell damage. Used in hemolytic anemia, lymphoma staging, and as prognostic marker in some cancers. LDH isoenzymes can localize source.
Who Should Get Tested?
Cancer Patients
LDH is used to monitor tumour burden and treatment response.
Suspected Hemolysis
When red blood cells are being destroyed.
Liver or Muscle Disease
LDH rises with liver damage or muscle injury.
Monitoring Chemotherapy
Tracks tissue damage during treatment.
Warning Signs — When Should You Get This Test?
Common Conditions Detected
Frequently Booked Together
Tests commonly ordered alongside LDH for a complete picture
Liver Function Test
If liver damage is suspected
Reticulocyte Count
If hemolysis is suspected
Troponin I
If cardiac origin is suspected
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