Protein, Total
Total Protein
Testing Information
Sample Type
Serum
Test Codes
630380
CPT Code
84155
Testing Area
Core Lab - Chemistry
Test Methodology
Abbott Alinity - Spectrophotometry
Reference Range
0-11 months: 4.4-8.0 g/dL1-8 years: 6.4-7.6 g/dL9-60 years: 6.4-8.3 g/dL>60 years: 6.2-8.1 g/dL
Expected Turnaround Time
Results Available 24 hours from Receipt
Specimen Collection Criteria
Collect one gold top SST tube (minimum whole blood: 1 mL). Let specimen clot for 30-60 minutes and then centrifuge to separate serum from cells. Refrigerate after centrifugation.
Rejection Criteria
Grossly hemolyzed specimens, quantity not sufficient, grossly lipemic specimens, improperly labeled
Specimen Validity and Retention
Centrifuged SST Tubes:Room Temperature (20-25°C): 2-4 hoursRefrigerated (2-8°C): 7 daysFrozen (-20°C or greater): UnacceptableSerum Aliquots:Room Temperature (20-25°C): 2-4 hoursRefrigerated (2-8°C): 5 daysFrozen (-20°C or greater): 7 daysSpecimens retained for 7 days after testing
Courier Transportation
Transport centrifuged tube refrigerated (2-8°C)
Clinical Utility
Total protein provides nutritional status and may be useful in the diagnosis of liver, kidney, and bone diseases.
