Chances are you’ve seen COVID-19 rapid antigen test kits for sale in drugstores and supermarkets and online. Or perhaps you’ve received your free kits from the federal government, which is currently shipping one billion test kits to families around the nation. (You can order yours here.)
The rapid antigen tests give results in 15-20 minutes and are convenient. Self-testing is an important tool in efforts to stop the spread of coronavirus, along with vaccination, masking, washing hands and social distancing.
To get the most accurate result, it’s important to do the test properly.
“We get a lot of questions from families about how to do the tests and how accurate they are,” said Claudio Alvarado, an assistant nurse manager in the pediatric emergency department at UC Davis Children’s Hospital. “They aren’t difficult to do, but it is important to follow the directions carefully.”
In the video above and text below, Alvarado shares the steps involved in a home antigen test, including a few tips for parents helping kids through the process. He’s referencing an iHealth rapid antigen test, a common brand. Many tests work similarly, but there are differences, so be sure to read the manufacturer’s instructions.
After 15 minutes, you’ll look for two things:
The at-home antigen tests aren’t as sensitive as PCR tests. “However, a positive COVID home test is fairly accurate and should be taken as a positive,” Alvarado said. “But there can be false negatives if it’s early in an infection. If you or your child have symptoms or have been exposed to COVID, it’s best to maintain proper precautions and re-test within a couple of days.”
Learn more about the different types of COVID-19 tests.
“The tests don’t differentiate between the different strains of COVID-19, and there’s no literature that shows they aren’t accurate with the omicron strain,” Alvarado said.
At-home rapid antigen tests are not approved for kids under 2. “If your child under 2 is having symptoms and needs to be tested, seek out your primary care provider for a PCR test,” Alvarado said.
“When doing an at-home COVID test – or any test – on a child, it’s best to be honest with them,” he explained. “Be calm and tell them exactly what you’re doing. It’s also great to make it a hands-on experience. Before you open the kit, make sure you let them know what each step includes. Let them see each aspect and have a good reward ready at the end.”
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