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SARS-CoV-2 Antibody Profile, Nucleocapsid and Spike

CPT 86769(x2)
Synonyms
  • SARS-CoV-2

Test Details

Methodology

Electrochemiluminescence Immunoassay (ECLIA)

Result Turnaround Time

1 - 3 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Use

To evaluate for evidence of previous SARS-CoV-2 infection in individuals with a history of COVID-19 vaccination to aide in the diagnosis of Multisystem Inflammatory Syndrome in children (MIS-C) or adults (MIS-A). The presence of antibodies specific to the SARS-CoV-2 viral nucleocapsid protein is consistent with natural infection as currently available COVID-19 vaccines induce antibodies against the viral spike protein receptor binding domain (RBD) only.

Limitations

These tests should not be used to diagnosis or exclude acute SARS-CoV-2 infection. The results should always be assessed in conjunction with patient's medical history, clinical presentation, and other findings. Negative test results do not rule out the possibility of an infection with SARS-CoV-2. Serum or plasma samples from the very early (pre-seroconversion) phase can yield negative findings. Therefore, these tests cannot be used to diagnosis an acute infection. It has also been reported that certain patients with confirmed infection do not develop SARS-CoV-2 antibodies. Furthermore, waning of antibody titers has been reported in some individuals within a range of months after infection, a feature which has also been reported for other coronaviruses.

These tests have not been FDA cleared or approved. These tests have been authorized by FDA under an Emergency Use Authorization (EUA). These tests are only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of COVID-19 under Section 564(b)(1) of the Act, 21 U.S.C. 360bbb-2(b) (1), unless the authorization is terminated or revoked sooner. This test has been authorized only for detecting the presence of antibodies against SARS-CoV-2, not for any other viruses or pathogens.

Specimen Requirements

Specimen

Serum or plasma

Volume

2.3 mL

Minimum Volume

1.4 mL (Note: This volume does not allow for repeat testing.)

Container

Gel-barrier tube, red-top tube, or serum transfer tube; or plasma from lithium heparin tube, EDTA, or sodium citrate tube

Collection Instructions

Standard aseptic technique

Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

28 days (stability provided by manufacturer or literature reference)

Freeze/thaw cycles

Stable x3

Storage Instructions

Room temperature

Causes for Rejection

Gross hemolysis; visible microbial contamination

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
160236 SARS-CoV-2 Antibody Profile 94504-8 164069 SARS-CoV-2 Ab, Nucleocapsid 94762-2
160236 SARS-CoV-2 Antibody Profile 94504-8 164091 SARS-CoV-2 Semi-Quant Spike Ab U/mL 94769-7
160236 SARS-CoV-2 Antibody Profile 94504-8 164092 SARS-CoV-2 Spike Ab Interp 94661-6
Order Code160236
Order Code NameSARS-CoV-2 Antibody Profile
Order Loinc94504-8
Result Code164069
Result Code NameSARS-CoV-2 Ab, Nucleocapsid
UofM
Result LOINC94762-2
Order Code160236
Order Code NameSARS-CoV-2 Antibody Profile
Order Loinc94504-8
Result Code164091
Result Code NameSARS-CoV-2 Semi-Quant Spike Ab
UofMU/mL
Result LOINC94769-7
Order Code160236
Order Code NameSARS-CoV-2 Antibody Profile
Order Loinc94504-8
Result Code164092
Result Code NameSARS-CoV-2 Spike Ab Interp
UofM
Result LOINC94661-6
Reflex Table for SARS-CoV-2 Semi-Quant Spike Ab
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 164093 SARS-CoV-2 Spike Ab Dilution 164093 SARS-CoV-2 Spike Ab Dilution U/mL 94769-7
Reflex 1
Order Code164093
Order NameSARS-CoV-2 Spike Ab Dilution
Result Code164093
Result NameSARS-CoV-2 Spike Ab Dilution
UofMU/mL
Result LOINC94769-7