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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
LD, Pleural Fluid
Test CodeLDPLFL
Quest Code
17589
CPT Codes
83615
Preferred Specimen
1 mL pleural fluid collected in sterile transport tube
Minimum Volume
0.5 mL
Transport Container
Sterile transport tube
Transport Temperature
Frozen
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Ultra Violet Kinetic
Setup Schedule
Daily
Report Available
2 days
Reference Range
| Transudate | <113 U/L |
| Exudate | >113 U/L |
Clinical Significance
The most reliable tests for differentiating between the transudates and exudates are the simultaneous analysis of pleural fluid and serum from lactic dehydrogenase (LD) and total protein levels. The main usefulness in defining serous body fluids as a transudate or exudate is to determine which effusions need further laboratory evaluation.
Performing Laboratory
| Quest Diagnostics Nichols Institute-Chantilly VA |
| 14225 Newbrook Drive |
| Chantilly, VA 20151-2228 |
