SARS-CoV-2 Nucleocapsid antibody, IgG

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General Information

Lab Name
SARS-CoV-2 Nucleocapsid Antibody, IgG
Lab Code
NCVIGG
Epic Name
COVID-19 Antibody, IgGz
Description

The Abbott Architect SARS-CoV-2 IgG assay, run under an emergency use authorization from the FDA, is a qualitative test designed to detect IgG antibodies to the nucleocapsid protein of SARS-CoV-2 in serum and plasma from patients who are suspected of past coronavirus disease (COVID-19) or in serum and plasma of subjects that may have been infected by SARS-CoV-2.

Reactive (Positive) results may be due to past or present infection with SARS-CoV-2. Results from antibody testing should not be used as the sole basis to diagnose or exclude SARS-CoV-2 infection or to inform infection status.

Nonreactive (Negative) results do not rule out SARS-CoV-2 infection, particularly in those who have been in contact with the virus. Follow-up testing with a molecular diagnostic should be considered to rule out infection in these individuals. Results from antibody testing should not be used as the sole basis to diagnose or exclude SARS-CoV-2 infection or to inform infection status.

This test run under an emergency use authorization from the FDA.

Ordering: We are pleased to perform serology testing for all patients who have a valid provider order. We recommend outside providers arrange to have their patients' blood drawn at their usual clinical draw sites and sent to the lab, preferably after contacting Client Support Services at commserv@uw.edu to facilitate testing.

For patients who do not regularly seek care within UW Medicine, our phlebotomists at the University of Washington Medical Center-Northwest Campus (UWMC-NW) and UWMC-NW Outpatient Medical Center (OPMC) located on Meridian Ave. N. are able to perform blood draws for testing with a valid provider order.

For Batteries containing NCVIGG see:

SARS-CoV-2 Antibodies (NCVIGG, NCVIGQ)[NCVIGB], The qualitative detection of anti-Nucleocapsid IgG (NCVIGG) and the quantitative detection of anti-Spike IgG (NCVIGQ) antibodies.

For all questions, contact Client Support Services (available 24/7):

Phone: (206) 520-4600 or (800) 713-5198
Fax: (206) 520-4903
Email: commserv@uw.edu

The test order requisition is available online.

References

Forms & Requisitions

UW Medicine Locations

Place order in ORCA, using "COVID-19 Antibody (IgG)".

For UWMC-Northwest ED/inpatients, place a Lab Undefined order in Soarian or PulseCheck for "NCVIGG: COVID-19 IgG."

Other Locations (eg, reference laboratory client)

Send all samples with the requisition available here (form is a fillable pdf - please download and enter information before printing)

Synonyms
2019-nCoV, COVID, COVID-19, COVID19, IgG, SARS, SARS-CoV-2, corona, coronavirus, nCoV
Components

Interpretation

Method

Chemiluminesence

Reference Range
See individual components
Ref. Range Notes

See individual components

References

Guidelines

Ordering & Collection

Specimen Type
Blood
Collection
  • Preferred: 5 mL blood in GOLD SST tube.
  • Also Acceptable: Orange RST, pearl PPT, serum from red top, plasma from EDTA tube.
Forms & Requisitions

UW Medicine Locations

Place order in ORCA, using "COVID-19 Antibody (IgG)".

For UWMC-Northwest ED/inpatients, place a Lab Undefined order in Soarian or PulseCheck for "NCVIGG: COVID-19 IgG."

Other Locations (eg, reference laboratory client)

Send all samples with the requisition available here (form is a fillable pdf - please download and enter information before printing)

Handling Instructions
  • Spin within 24 hours and prior to shipment.
  • Sample is stable for 7 days at 2-8°C once separated from a clot or red blood cells, or in a gel separator tube.
  • If testing will be delayed more than 7 days store at -20°C or colder.

Send Specimens to:

UW Medicine
Department of Laboratory Medicine
1959 NE Pacific Street, Room NW220
Seattle WA, 98195
Tel: (206)520-4600 or 1 (800)713-5198

Quantity
requested: entire sample
minimum: 0.5 mL serum/plasma

Processing

Processing

Centrifuge GOLD SST tube and route to Eastlake Virology (EVIR rack 81).

Centrifuge RED TOP or EDTA tube and aliquot serum/plasma into plastic aliquot tube. Route to Eastlake Virology (EVIR rack 81).

Stability: Sample stable off the clot, red blood cells, or separator gel for 7 days at 2-8°C. If testing will be delayed more than 7 days store at -20°C or colder.

Performance

LIS Dept Code
Virology, Eastlake (EVIR)
Performing Location(s)
Other Virology, Eastlake

Tel: 206-685-0109 option 8

Performing location for COVID-19 Antibody (IgG)

Frequency
Monday-Sunday. Results returned within 24 hours of sample receipt.
Available STAT?
No

Billing & Coding

CPT codes
86769
Billing Comments

List price: $42

LOINC
94504-8
Regulatory Category
Laboratory-developed test