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Epic Test Code LAB118 Protein, Total: Serum (TP)

Performing Location(s)

BMC,CRH,LFH,HRK,OCH,FTT,FOX,FCC

Specimen Type

Serum or Plasma

Preferred Container

Gold or Red top tube

Alternate Container

Green top tube

Blood Tube Draw Volume

Min 50% draw volume  

Minimum Volume to Submit for Testing

0.5 mL Serum or Plasma

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Sample tubes should be centrifuged within 2 hours of collection 

Gold tops DO NOT ALIQUOT

Aliquot Red tops

See Causes of Rejection for temperature requirements.

Transportation Needs

 Deliver specimen to laboratory within 1 hour of collection if unspun. If not possible see "storage Requirements". 

Causes for Rejection

Mislabeled or unlabeled specimen
Less than 50% draw for Vacutainer tubes
> 7 days Refrigerated 
> 7 day Room Temp
> 2 months Frozen

Hemolysis > 500 mg/dL HgB
Lipemia > 1000 mg/dL Trig
Bilirubin > 40 mg/dL Bili

Reference Values

Population Units Reference Range
All Populations g/dL 6.0-8.3

 

Reflex Testing

When a Total Protein is ordered with and Albumin an AGR will be calculated at no charge.

Limitations

Hemoglobin of 500 mg/dL [0.31 mmol/L (monomer)] increases the TP result by 0.5 g/dL [5.0 g/L] at a total protein concentration of 6.5 g/dL [65 g/L].

Plasma expanders such as dextran are reported to depress TP results.

Bilirubin of 20 mg/dL [342 µmol/L] decreases the TP result by 0.6 g/dL [6.0 g/L] at a total protein concentration of 6.1 g/dL [61 g/L].

Days of Analysis

All

Available STAT

Yes

Methodology

Beckman AU/Dx Series

CPT Code

84155

Last Updated

27-NOV-24 MS