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PROTEIN TOTAL, BLOOD
test app
TEST NAME: PROTEIN TOTAL, BLOOD
This test is also available as part of the Comprehensive Metabolic Panel (CMP) and Hepatic Function Panel. See Common Panel Test Combinations under SLCH Lab Utilization tab to avoid duplicate requests when multiple panels are ordered.
LAB DEPT: Core Lab Chemistry
SPECIMEN REQUIREMENTS
Specimen Type:
Blood
Container/Tube
Preferred:
Mint green-top lithium heparin (MNTGRN LiHep) Vacutainer
®
Acceptable:
green SAMPLETTE™/MICROTAINER®, plain red-top vacutainer ®, or Gold/Red SST gel vacutainer®.
Collection Volume:
1.0 mL (minimum 0.6 mL)
Patient Preparation:
None
Sample Rejection
Mislabeled or unlabeled specimens.
Special Instructions:
Avoid prolonged venous stasis when collecting the specimen.
Send to lab promptly.
LOGISTICS
Test Availability:
Monday-Sunday
Cut-off time:
None; performed as received
Turnaround Time:
Same day; 2 hours from receipt in lab
Lab Testing Section:
Chemistry
INTERPRETIVE
Reference Range:
Plasma
<7 days:
4.5-7.0 g/dL
7 days-1 year:
5.5-7.5 g/dL
>
1 year:
6.5-8.5 g/dL
Serum
<7 days:
4.2-6.7 g/dL
7 days-1 year:
5.2-7.2 g/dL
>
1 year:
6.2-8.2 g/dL
Critical Values:
<3.0 g/dL (all ages, plasma and serum)
Critical test results will be automatically called back initially and every 168 hours thereafter.
Limitations:
In very rare cases, gammopathy, in particular type IgM (Waldenström's macroglobulinemia), may cause unreliable results.
Methodology:
Colorimetric
ADDITIONAL INFORMATION
For SLCH Laboratory use only
Lab Processing instructions:
Centrifuge specimen to separate. If specimen is collected in microtainer or plain, red-top tube aliquot sample into a Roche false-bottom tube for testing (labeling aliquot with specimen type).
Processed Volume:
0.3 mL plasma/serum
Analyte Stability:
Ambient (unprocessed): 24 hours
PROCESSED:
Ambient: 24 hours
Refrigerated: 3 days
Frozen: 6 months
Notes:
If specimen is collected and received in a red-top tube, re-order for 'Protein Ser'. This is required as serum reference intervals differ. Serum reference intervals will print on report with correct order.
Will also accept Lavender-top (EDTA) plasma
GENERAL INFORMATION
EPIC order name:
Protein Total (EPIC Test# LAB118)
Cerner order name:
Protein Plas (or Protein Ser)
CPT Codes:
84155
LOINC Value:
2885-2
Synonyms:
Last Updated: 12/24
Last Reviewed: 12/24