Casandra
Casandra Test Code QD73235Version 1 (DRAFT)
Performing Lab
Albumin, Pleural Fluid
Clinical Use
Order TestUse
The serum–effusion albumin gradient aids in classifying pleural effusions as transudates versus exudates. A gradient >1.2 g/dL suggests a transudate, whereas ≤1.2 g/dL suggests an exudate; thus, measuring pleural fluid albumin in conjunction with serum albumin supports diagnostic evaluation of serous effusions.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Automated Analyzer (Other)
Biomarkers
Albumin
AnalyteAlbumin
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Body Fluid
Volume
1 mL preferred
Minimum Volume
0.5 mL minimum
Container
Sterile leak‑proof container
Collection Instructions
Submit in a sterile leak‑proof container; indicate source of fluid
Causes for Rejection
Gross hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 28 days |
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