Examinations
Examinations
Within 2–3 weeks after contact with a Covid-19-infected person, IgG antibodies are formed in the body as a response to the virus. Similarly, these antibodies are produced in the blood following vaccination. Research indicates that IgG antibodies remain in the blood for approximately 6 months.
A quantitative test for Covid-19 IgG antibodies not only determines the presence of antibodies but also measures their level in the blood. This allows us to know the exact quantity of antibodies against coronavirus in the bloodstream.
A positive result indicates one of the following:
- The patient was previously infected with Covid-19.
- The infection is in its final stage.
- Antibodies have been produced as a result of vaccination.
Avoid food intake for 2 hours before the test.
- To determine the amount of IgG antibodies formed as a result of a past infection.
- To assess the level of antibodies produced after vaccination.
Positive Result:
- Presence of an immune response due to recent or past exposure to the SARS-CoV-2 virus.
- Antibody production following vaccination.
Negative Result:
- Absence or very low levels of IgG antibodies against the pathogen being analyzed may occur in the following cases:
- No prior contact with a SARS-CoV-2-infected individual.
- Incubation period or the earliest stage of infection (within the first week of symptom onset).
- In patients with weakened immune systems, infection development and the immune response may be delayed or diminished.
- Antibody levels may decline to undetectable levels after a prolonged period post-infection (usually more than 3–5 months, although the exact duration of antibody presence varies from person to person).