Protein, Total, Serum/Plasma

Abbrev Code:TP   
Order Code:LAB118Order Name:Protein Total
Synonyms:Total Protein
Methodology:Roche: Colorimetric
Vista: Bichromatic rate
Woodwinds: Benzalkonium chloride
CPT Codes: 84155 x1, 84155 x1
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Roche Go Live Schedule

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Collection Instructions:Chemistry Tests Containers Chart

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Roche: 4 weeks refrigerated; 1 year frozen.
Vista: 8 hours at room temperature; 3 days refrigerated; 6 months frozen.
Test Performed at or Referral Lab Chemistry  (CSC Maple Grove, Roche-CSC Mpls, Roche-Grand Itasca, Roche-Lakes, Roche-Northland, Roche-Range, Roche-Ridges, Roche-Southdale, Roche-St. John's, Roche-UMMC East, Roche-UMMC West, Woodwinds)


Reference Range:Hepatic Panel Critical Values and Reference Ranges
The total protein concentration is 4-8 g/L lower when the sample is collected from a patient situated in the recumbent position rather than upright.
Use:Albumin is the major serum protein, accounting for roughly half the total protein in most individuals. Excessive loss from the kidneys, GI tract, or skin such as with burns as well as decreased protein synthesis from malnutrition or liver disease can cause low serum albumin and to a lesser extent low total protein. Elevated albumin and total protein can be seen with dehydration. Elevated total protein with normal albumin suggests other serum proteins are elevated, seen most frequently in those with multiple myeloma.

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