Ulta Lab Tests

SARS-CoV-2 Total Antibody Spike Semi-Quantitative Test

The SARS-CoV-2 Total Antibody Spike Semi-Quantitative Test detects antibodies to the COVID-19 spike protein, indicating an adaptive immune response from recent or prior infection. Vaccinated individuals may also test positive, though results should not be used to assess immunity or protection. Doctors use this blood test to confirm past exposure, but it is not designed to diagnose active infection or predict reinfection risk.

Blood
Blood Draw
COVID-19 Spike Test
There are no preparation instructions.

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

SARS COV 2 AB, TOTAL

*Important Information on Lab Test Processing Times: Ulta Lab Tests is committed to informing you about the processing times for your lab tests processed through a national lab. Please note that the estimated processing time for each test, indicated in business days, is based on data from the past 30 days across the 13 laboratories for each test. These estimates are intended to serve as a guide and are not guarantees. Factors such as laboratory workload, weather conditions, holidays, and the need for additional testing or maintenance can influence actual processing times. We aim to offer estimates to help you plan accordingly. Please understand that these times may vary, and processing times are not guaranteed. Thank you for choosing Ulta Lab Tests for your laboratory needs.

The SARS-CoV-2 Total Antibody Spike Semi-Quantitative Test test contains 1 test with 1 biomarker .

SARS-CoV-2 Total Antibody (COVID-19), Spike, Semi-Quantitative - This test is intended as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2 (COVID-19), indicating recent or prior infection. The results of this semi-quantitative test should not be interpreted as an indication of degree of immunity or protection from reinfection.
Individuals who have been vaccinated with a SARS-CoV-2 spike or receptor-binding domain vaccine may be positive with this test; however, the clinical significance of a positive antibody result for individuals who have received a COVID-19 vaccine is unknown, in part because the test's performance characteristics have not been established for that population. It is not known how long antibodies persist following infection and if the presence of antibodies confers protective immunity. This assay should not be used to diagnose acute SARS-CoV-2 infection.

Reference Range(s)

<0.8 U/mL Negative
≥0.8 U/mL Positive

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