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The Wall Street Publication > Blog > Lifestyle > How to Do a Rapid At-Home Covid-19 Test
Lifestyle

How to Do a Rapid At-Home Covid-19 Test

Editorial Board Published September 30, 2021
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How to Do a Rapid At-Home Covid-19 Test
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By

Sumathi Reddy

| Graphics by

Merrill Sherman

Sept. 30, 2021 8:00 am ET

Rapid home Covid-19 tests promise convenience and speed: You buy a Covid-19 test kit from the drugstore, bring it home, swab yourself and get results in about 15 minutes.

But the tests aren’t as accurate if you don’t collect the sample correctly. And an increase in demand has led to shortages in some places. Here’s a guide to doing the tests, and everything else you need to know about at-home tests.

How much do at-home Covid-19 tests cost?

The BinaxNOW test, made by Abbott Laboratories, is the most widely available and commonly used over-the-counter rapid antigen test. It typically costs $14 to $24 for a two-pack.

Other rapid tests authorized by the U.S. Food and Drug Administration include the Ellume Covid-19 Home Test (roughly $26 to $39 from drugstores for one test) and the QuickVue test made by Quidel, selling for about $24 or $25 at pharmacies for a two-pack.

How do I use a rapid test at home?

Here is an illustrated overview of the BinaxNOW test. To ensure an accurate result, users should consult and follow each manufacturer’s instructions for detailed guidance.

Wash your hands

To avoid contamination, first wash your hands and avoid contact with testing surfaces.

Add drops

Then for the BinaxNOW kit, put six drops from the dropper bottle into the top hole of the card.

Swab your nose

Insert the swab into each nostril and twist in a circular motion. The BinaxNow test advises users to make at least five big circles around the inside of the nose, swabbing for about 15 seconds per nostril. QuickVue says to rub the swab in a circular motion at least four times; Ellume requires three times.

Conduct the test

Insert the swab into the test device or card and your results are displayed in about 15 minutes. QuickVue takes 10 minutes. Ellume’s results are shown directly in an app that links to the test kit.

Conduct the test

Insert the swab into the test device or card and your results are displayed in about 15 minutes. QuickVue takes 10 minutes. Ellume’s results are shown directly in an app that links to the test kit.

Share your results

The Ellume and BinaxNOW kits allow results to be shared by way of an app. The BinaxNOW results are entered into the app manually.

Are at-home Covid-19 tests accurate?

Rapid at-home tests are most reliable in people who have symptoms, researchers say. They are less sensitive than PCR tests and don’t pick up as many asymptomatic or presymptomatic cases. Rapid home tests work the same way as rapid tests performed at a medical center, but home tests can be slightly less accurate because laypeople are more likely to do the test incorrectly.

The BinaxNOW kit recommends that the test be taken twice over three days, with at least 36 hours between tests. QuickVue recommends testing twice over two to three days, with at least 24 hours—and no more than 36 hours—between tests.

Where can I buy at-home rapid Covid-19 tests?

They are sold at retailers including drugstores and online, but many places are currently sold out as the tests have increased in popularity.

Write to Sumathi Reddy at [email protected]

Copyright ©2021 Dow Jones & Company, Inc. All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8

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