Lactate Dehydrogenase (LD), Pericardial Fluid

Test Code
17647


CPT Codes
83615

Preferred Specimen
1 mL pericardial fluid collected in a sterile screw-cap container


Minimum Volume
0.5 mL


Transport Temperature
Frozen


Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis



Methodology
Spectrophotometry (SP)

Setup Schedule
Set up: Sun, Tues, Thurs, Fri; Report available: 4-6 days


Reference Range
Transudates <200 U/L
Exudates >200 U/L


Clinical Significance
The most reliable tests for differentiating between the transudates and exudates are the simultaneous analysis of pericardial 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-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.