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LD (Lactate Dehydrogenase), Pleural Fluid
MessagePerforming Lab: Regions
Test Code
4791
Alias/See Also
Sunquest: PBFLD; LDH Pleural Fluid, LD
CPT Codes
83615
Includes
Source, Pleural LDH
Preferred Specimen
0.2 mL Pleural Fluid
Minimum Volume
0.1 mL
Instructions
Ordering:
Order on Pleural Fluids only. If another type of body fluid is collected order BFLD (Epic code 3359) or if CSF is collected order CSFLD (Epic code 3360).
Order on Pleural Fluids only. If another type of body fluid is collected order BFLD (Epic code 3359) or if CSF is collected order CSFLD (Epic code 3360).
Transport Container
Sterile Container
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature: 7 days
Refrigerated: 4 weeks
Frozen: Indefinite
Refrigerated: 4 weeks
Frozen: Indefinite
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Too viscous to sample
Setup Schedule
Daily
Report Available
Same day.
Reference Range
No reference range established
Clinical Significance
Pleural Fluid LDH testing: LDH may be used to indicate transudate vs. exudate using the ratio of LDH Pleural/Serum. Ratio <0.6 indicates a transudate, ratio of >0.6 indicates an excudate and a pleural fluid LDH more than 2/3 the normal upper limit for serum LDH is indicative of an exudate.
