SARS-CoV-2 Antigen

Detects SARS-CoV-2 antigen in a respiratory sample.

For rapid screening for current SARS-CoV-2 infection when relevant symptoms are present.

1. Before the test, tell your doctor about any topical or systemic antibiotics.
2. Check in advance where the swab will be taken from and any preparation restrictions.
3. The sample is collected by a specialist using an approved method.
4. Additional note: the test is done on a respiratory sample. Follow the instructions for the specific kit and from the staff collecting the sample; the time your symptoms began matters.

Fasting is generally not required. If another test has been ordered at the same time, the overall preparation plan may change.

A specific time is generally not required. If your doctor has set a different time, follow those instructions.

• Time since infection and the antibody development window
• Immune status and some treatments
• Cross-reactions and test specificity

Nasal / nasopharyngeal swab — depending on the method

The specialist takes the swab from the appropriate site and transfers it to a glass slide or transport system intended for the specific test. Sample fixation and delivery conditions are set by the laboratory's SOP.

A positive antigen result supports infection; a negative result does not fully rule it out, especially if you have symptoms.

If the result is reactive or indeterminate, see a doctor to choose confirmatory testing and next steps. Timely evaluation is especially important during pregnancy.

Do not stop treatment on your own. Confirm the final test conditions with the laboratory.