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Test Code LAB3719 COVID-19 Antibody, Spike IgG

Important Note

This assay detects response to spike protein. The vaccines induce responses to the spike protein, therefore this immunoassay will detect response to vaccine, as well as past infection.

Additional Codes

COVID Spike

Sample Requirements

Specimen: Whole Blood

Container(s): Gold, Gold Microtainer, Red Top-Plain, or Lavender Top Tube

Preferred Vol: 5.0 mL

Minimum Vol: 1.0 mL

 

Note: 

Processing Instructions

Reject due to:

Spin: Y

Aliquot: Y

Temp: 2 - 8°C

Storage Location: CPA1 Refrigerator, UW/HMC Send Outs rack.

Off-site Collection: Spin within 24 hours and aliquot 2.5 mL (Min. 0.5 mL) serum or plasma into a plastic aliquot tube. Send specimen refrigerated.

Stability

Specimen Type Temperature Time
Serum or Plasma Room Temp 24 h
  Refrigerated 7 d
  Frozen Indefinite

 

Performing Laboratory

University of Washington

Department of Laboratory Medicine

Virology-COVID Testing Lab, Renton

1601 Lind Ave SW

Renton, WA 98057

 

Phone Number: (206) 520-4600

Department

Department: Send Outs

Phone Number: (206) 987-2563

Synonyms

2019-nCoV; Coronavirus; COVID; COVID-19; COVID19; COVID-19 Antibody (IgG); Covid-19 IgG; Immune Response; nCoV; NCVIGQ; SARS; SARS-CoV-2

Availability

STAT Performed TAT
N M & F 24 - 72 h

Methodology

Method: Chemiluminescentce

Analytical Volume: 0.5 mL Serum or Plasma

Reference Range

AU/mL Interpretation
<50.00 Nonreactive (Negative)
≥50.00 Reactive (Positive)

The Abbott Architect SARS-CoV-2 IgG II assay, run under an emergency use authorization from the FDA, is quantitative test designed to detect IgG antibodies to the spike protein of SARS-CoV-2 in serum and plasma from individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection. Results are reported as AU/mL.

CPT Codes

86413

Clinical Information

  • Serological testing is NOT indicated for diagnosis of acute infection and should not be ordered while a patient is being investigated for active SARS-CoV-2 infection.
  • Samples should be collected at least 21 days after onset of symptoms, to avoid potential false negative results.
  • Please refer to these FAQs.

Send Out Instructions

Reference Lab Test Name: SARS CoV 2 Spike Antibody, IgG
Reference Lab Test Code:

NCVIGQ
Instructions:

Send out daily with the UW courier.