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Worcestershire Acute Hospitals NHS Trust
SARS COV 2 Antoibody
Test information
What is an antibody? 
An antibody is a protein within the blood that is part of the body’s immune response to an infection, in this case COVID-19 
What is an antibody test? 
An antibody test can tell someone whether they have had an immune response to the virus that causes Covid-19 in the past, by analysing a blood sample. 
Who will take my blood sample? 
For anyone in a clinical area, you will need to work as a team to identify who can take your blood sample. This can be any member of your team who is phlebotomy trained, including junior doctors. If you don’t feel comfortable with a colleague taking your blood sample, please speak to your manager to find an alternative at one of the outpatient testing clinics. 
When will I get my results? 
A member of Trust staff will be in contact with you to inform you of your results. If you have not been informed of your results over 7 days from the sample being received at the laboratory, please speak to your line manager 
What do antibody test results mean? 
A positive antibody test demonstrates that someone has developed antibodies to the virus. The presence of antibodies signals that the body has staged an immune response to the virus. 
Covid-19 is a new disease, and our understanding of the body’s immune response to it is limited. We do not know, for example, how long an antibody response lasts, nor whether having antibodies means you have protection form further infections with COVID. Our understanding of the virus will grow as new scientific evidence and studies emerge. 
An antibody test result can only tell an individual whether or not they have had the virus in the past. Antibody tests are also being used currently in surveillance studies, to understand what proportion of the population have already had the virus. 
Results of the antibody test will not affect use of PPE or your occupation; you will continue to work within the guidelines for Covid 19. 
If you test positive for antibodies, can you ignore lockdown restrictions? 
No. There is no evidence yet to suggest that those who have been proven to have had the virus are immune. You should continue to comply with social distancing measures and government guidelines. All infection prevention and control measures must continue to be in place irrespective of the presence of antibodies. 
Tube type
Serum Gold top
Gold top tube
Minimum volume
TAT Inpatient (urgent)
3 working days (Mon to Friday)
TAT Inpatient
3 working days (Mon to Friday)
TAT GP/Outpatient
3 working days (Mon to Friday)
Page last updated: 11 January 2022