Lactate Dehydrogenase Total, Body Fluid
Also known as: LDH-FL
Use
Lactate Dehydrogenase (LDH) is an enzyme that is found in almost all of the body's tissues, including the body's fluid compartments. It's typically measured to assess tissue breakdown or hemolysis and is an important marker in clinical medicine for conditions leading to elevated LDH levels in body fluids such as cerebrospinal (CSF), pericardial, peritoneal/ascites, pleural, or synovial fluids. The test results can assist in diagnoses such as infections, inflammations, and other pathologies affecting these fluid compartments.
Special Instructions
Specimen source must be provided when ordering this test. Ensure the specimen is not hemolyzed and is free of cellular materials for optimal results. Different specimens have specific handling requirements post-collection. Clinicians should refer to body fluid reference ranges for interpretive guidance.
Limitations
The test is not FDA cleared or approved but is performed in a CLIA certified laboratory, indicating it is valid for clinical use. Performance characteristics were determined by ARUP Laboratories. Results may be affected by the condition of the specimen, thus hemolyzed or incorrectly collected and stored specimens may yield inaccurate results. Specimens collected in inappropriate containers (e.g., EDTA, potassium oxalate) or overly viscous specimens may not be accepted for testing.
New York Approved
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 14803-1
- 31208-2
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Body Fluid
Volume
1 mL
Minimum Volume
0.2 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Centrifuge to remove cellular material.
Storage Instructions
Refrigerated.
Causes for Rejection
Specimen types other than those listed. Specimens collected in EDTA, potassium oxalate, or sodium fluoride. Hemolyzed specimens. Specimens too viscous to be aspirated by instrument.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 1 week |
| Refrigerated | 4 days |
| Frozen | 6 weeks |