Protein, Total
Use
Evaluate nutritional status; investigate edema.
Special Instructions
Total protein and albumin normally decrease by 5% to 10% upon recumbency, as in hospitalization. It is important that the specimen is separated from cells within four hours of collection to ensure accuracy of the results.
Limitations
The clinical interpretation of total protein levels is greatly enhanced by examining the individual fractions composing total protein, such as through serum protein electrophoresis, quantitative immunodiffusion, or immunofixation. These methods can help in diagnosing specific conditions when clinical separation is indicated.
Methodology
Automated Analyzer (Clinical Chemistry)
Biomarkers
LOINC Codes
- 2885-2
- 2885-2
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.7 mL
Container
Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube
Collection Instructions
Separate serum or plasma from cells within four hours of collection.
Storage Instructions
Maintain specimen at room temperature.
Causes for Rejection
Hemolysis; improper labeling
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
Other tests from different labs that may be relevant