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Lactate Dehydrogenase (LDH) Isoenzymes Blood Test
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| Feature |
Labcorp
|
Quest Diagnostics
|
|---|---|---|
| Price | $50.99 | $41.49 |
| Results in | ~6 business days | ~5 business days |
| Sample type | Blood Serum | Blood Serum |
| Require fasting | No | No |
About the test
This panel measures lactate dehydrogenase isoenzymes. Lactate dehydrogenase (LD) is an enzyme found in almost all of the body's cells; elevated levels of this enzyme can be used as a general marker of cell injury. LD isoenzymes are used to determine the source of elevated LDH activity, as each isoenzyme tends to be concentrated in specific body tissues.
Included biomarkers & Reference ranges
| Biomarker | Reference range |
|---|---|
| Lactate Dehydrogenase (LDH) An enzyme found in many tissues, released when cells are damaged. A general marker used alongside other tests to investigate tissue injury, certain cancers, or red blood cell breakdown. | 100–200 IU/L |
| Lactate Dehydrogenase Isoenzyme 1 (LD1) A specific form of LDH found mainly in heart muscle and red blood cells, historically used to help detect heart or blood-cell damage. | — |
| Lactate Dehydrogenase Isoenzyme 2 (LD2) A specific form of LDH found mainly in the immune system and red blood cells. | — |
| Lactate Dehydrogenase Isoenzyme 3 (LD3) A specific form of LDH found mainly in the lungs and other organs. | — |
| Lactate Dehydrogenase Isoenzyme 4 (LD4) A specific form of LDH found mainly in the kidneys, placenta, and pancreas. | — |
| Lactate Dehydrogenase Isoenzyme 5 (LD5) A specific form of LDH found mainly in the liver and skeletal muscle. | — |
Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.
How it works
- 1. Order online No referral or insurance
- 2. Get a requisition By email in 24–72 hours
- 3. Visit a draw center Bring a matching photo ID
- 4. Get results Securely by email
- These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Consultations
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