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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 # |
Albumin, Pleural Fluid
Test Code17413
CPT Codes
82042
Preferred Specimen
1 mL pleural fluid submitted in a sterile leak-proof container
Minimum Volume
0.5 mL
Instructions
Freeze specimen and ship on dry ice.
Transport Temperature
Frozen
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Nephelometry
Setup Schedule
Set up: Mon-Sat; Report available: 1-2 days
Reference Range
Because of the wide range of Albumin levels seen in serous body fluids, results are best evaluated by using the serum-effusion albumin gradient (serum albumin result minus the serous body fluid albumin result) to differentiate whether the fluid is a transudate or an exudate.
A gradient value of >1.2 g/dL is seen in transudates.
A gradient value of ≤1.2 g/dL is seen in exudates.
A gradient value of >1.2 g/dL is seen in transudates.
A gradient value of ≤1.2 g/dL is seen in exudates.
Clinical Significance
The serous cavities surrounding the abdomen, heart and lungs will accumulate fluids, called effusions, when their production or resorption is not in balance. The serum-effusion albumin gradient is used to classify whether an effusion is a transudate or an exudate.
Performing Laboratory
Quest Diagnostics Nichols Institute |
14225 Newbrook Drive |
Chantilly, VA 20153 |