Is a COVID-19 test done with a rapid antigen test kit?

A rapid antigen kit commonly uses a sample collected from the nose, then applies it to a test device. The device looks for proteins from SARS-CoV-2 and displays a result after the stated waiting time. It is designed to give an answer quickly, but a negative result does not always exclude infection, particularly when testing is done early or the sample is not collected well. A laboratory test may be recommended when symptoms and the initial result do not agree.

Read the kit instructions before collecting the sample and check that the device is within its use date and packaging is intact. Follow the collection steps carefully and interpret the result only within the instructed time window. If positive, follow current local advice and limit close contact while arranging appropriate guidance. If negative but symptoms continue, repeat or confirm testing only as advised by a healthcare professional.

The test result does not replace a clinical assessment. Seek urgent help for severe breathing difficulty, chest pain, new confusion, or difficulty staying awake. Contact a clinician when symptoms worsen, a person at higher risk becomes unwell, or repeated results conflict with the symptoms. Ask about a laboratory test when an official or treatment-related result is required.

Ask which test is suitable for your timing and symptoms, how to collect the sample correctly, and whether a negative antigen result needs confirmation. You can also ask when to test again and what precautions to take around household members.