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HelpTest Code LAB5379-BACK UP Lactate Dehydrogenase (LDH), Body Fluid
Additional Codes
Mayo: LDBF
SQ: LDBFM
Reporting Name
Lactate Dehydrogenase (LD), BFPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Body FluidNecessary Information
1. Date and time of collection are required.
2. Specimen source is required.
Specimen Required
Specimen Type: Body fluid
Preferred Source:
-Peritoneal fluid (peritoneal, abdominal, ascites, paracentesis)
-Pleural fluid (pleural, chest, thoracentesis)
-Drain fluid (drainage, Jackson Pratt [JP] drain)
-Pericardial
-Synovial
-Cerebral spinal fluid
Acceptable Source: Write in source name with source location (if appropriate)
Collection Container/Tube: Sterile container
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge to remove any cellular material and transfer into a plastic vial.
2. Indicate the specimen source and source location on label.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Body Fluid | Ambient (preferred) | 7 days | |
| Refrigerated | 48 hours |
Day(s) Performed
Monday through Sunday
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83615
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| LDBF | Lactate Dehydrogenase (LD), BF | 14803-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| LD_BF | Lactate Dehydrogenase (LD), BF | 14803-1 |
| FLD11 | Fluid Type, Lactate Dehydrogenase | 14725-6 |
Method Description
Lactate and nicotinamide adenine dinucleotide, in the presence of lactate dehydrogenase, are converted to pyruvate and reduced nicotinamide adenine dinucleotide (NADH). The rate at which NADH is formed is determined by increase in absorbance and is directly proportional to enzyme activity.(Package insert: Roche LDH reagent. Roche Diagnostics; V13.0 02/2022)
Report Available
Same day/1 to 2 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Anticoagulant or additive, Breast milk, nasal secretions, gastric secretions, bronchoalveolar lavage (BAL) or bronchial washings, colostomy/ostomy, feces, saliva, sputum, urine, or vitreous fluid | Reject |
Method Name
Photometric
Useful For
Identification of exudative pleural effusions
Lactate dehydrogenase in pericardial fluids is not diagnostically useful.
Reference Values
An interpretive report will be provided.