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Test Code PROTEIN and ALB Globulin

Important Note

Globulin is a calculated value, and is defined as the difference between Total Protein and Albumin.  We don't provide the calculation, but providers can calculate it manually using the formula:

Total protein (g/dL) - Albumin (g/dL) = globulin (g/dL)

Sample Requirements

Specimen:  Whole Blood

Container(s): Lt. Green/Mint Top Lithium Heparin, Lt. Green/Lithium Heparin Microtainer, Gold SST, Gold Microtainer, Dark Green/Sodium Heparin, Red

Preferred Vol: 1.0 mL

Minimum Vol: 0.5 mL

 

Note:  See Protein (Serum) and Albumin. This is a calculated value based on the serum protein and albumin values.

Processing Instructions

Reject due to:  Age of specimen

Spin: Y

Aliquot: Y

Storage location: Core 5 Chemistry Refrigerator

 

Off-site collection: Specimen should be centrifuged within 2 hours of collection. Spin blood and transfer serum or plasma to plastic tube and refrigerate or freeze.

Stability

Specimen Type Temperature Time
Serum RT

≤ 4 h
Serum 2-8 C

≤ 3 d
Serum -20 C or -70 C

≤ 6 m

Availability

STAT Performed TAT
Y 24/7 1 h

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Core Chemistry

Phone Number: 206-987-2617 (Client Services)

CPT Codes

84155

82040

Methodology

Method:  Colorimetric by Vitros 4600

Analytical Volume:  0.03 mL + 0.03 mL dead space

Reference Range

Refer to Protein (serum) and Albumin for reference ranges.