LAC | DPH | COVID-19 Self-tests

Video also available in Spanish and American Sign Language (ASL). Manufacturers' instructional videos are available here.

Check the expiration date. If an antigen self-test is past its expiration date, it may still be good to use. Follow the instructions below to see if you can still use the test.

Follow the manufacturer’s step by step instructions exactly.
The instructions are in the test kit box. They include how to interpret the test results.
You can find the test manufacturers' instructional videos here.
Be sure to discard kits (and all components) promptly after use/test results.

Keep all parts of the test kit out of reach of children and pets before and after use.
Supervise children when testing. The chemicals and small parts can cause harm if they are used incorrectly. Learn more from this FDA at-home COVID-19 test safety message.

Make sure that you understand your test results - read the results section on the instructions that come with the test. It is recommended that negative tests are repeated 48 hours later - see FDA At-Home COVID-19 Antigen Tests- Take Steps to Reduce Your Risk of False Negative Results. For additional guidance, on what your results mean and what to do next, click here.

For more information on home test kits, visit the CDC self-testing website.

The expiration date is on the box. It is printed as year- month - day. For example, 2022 11 20 means November 20, 2022.
If you have a COVID-19 home antigen test that is past its expiration date, you may still be able to use it. The Los Angeles County Department of Public Health supports the California Department of Public Health’s endorsement of the emergency use of COVID-19 antigen self-tests beyond their expiration date.
How to make sure the test is still good to use:

Read and follow the instructions in the box carefully.
Check that the control line on the test is visible.
- The color should match the color stated in the instructions.
- If the control line is not visible or the color of the line is different than in the instructions, it is invalid. Do not use the results of this test. Take a new sample and use a new test from a different box.
- If the control line is visible and the color of the line is the same as in the instructions, the test is good to use.
Download or print these instructions: English | Spanish

Check that your test is authorized by the FDA
Visit the FDA At-Home OTC COVID-19 Diagnostic Tests webpage (Spanish) to see if your test is authorized. You can see if your test has been recalled at the FDA Recalls, Market Withdrawals, & Safety Alerts webpage. Type “COVID test” in the Search box and look for your test in the list.

Check for signs that the test might be fake
Look at the box and materials for:
- Poor quality images or text on the label or instructions
- Missing key information, such as the lot number, expiration date, barcode or QR code (See photos of examples - click the name of test on the FDA webpage and scroll down to view)
- Spelling or grammatical errors
- Parts of the kit that do not match the description (for example, missing instructions, missing or empty components, different number of parts)
- Trade name, labels, or instructions that look different from the authorized labeling on the FDA website: At-Home OTC COVID-19 Diagnostic Tests | FDA

On 4-29-22 the FDA advised consumers about counterfeit Flowflex COVID-19 Antigen Home Tests and iHealth COVID-19 Antigen Rapid Test Kits.

Learn more about counterfeit at-home COVID-19 diagnostic tests (FDA webpage) and how to avoid buying fake test kits online (Federal Trade Commission) and other COVID-19 scams and fraud. If you think you bought a fake COVID-19 test, please report it to the Department of Consumer and Business Affairs at bit.ly/CBAHelp or 1-800-593-8222. If you had a problem with a COVID test, please report it to FDA’s MedWatch program.

DO NOT USE THESE TESTS

The FDA issued notices for the following tests:

2-8-23: Universal Meditech, Inc., Skippack Medical Lab SARS-CoV-2 Antigen Rapid Test (Colloidal Gold) Class 1 Recall FDA Recall
12-27-22: Empowered Diagnostics, CovClearCOVID-19 and ImmunoPass COVID-19 Neutralizing Antibody Rapid Antigen Tests FDA warning
12-12-22: Detect, Inc. Covid-19 Test, Lot #s: HB264, HY263, HY264 FDA Recall
10-13-22: Jiangsu Well Biotech COVID-19 Ag Rapid Test Device Recall FDA Recall
8-2-22: North American Diagnostics Oral Rapid SARS-CoV-2 Rapid Antigen Test Kit Recall FDA Recall
5-17-22: Oral Rapid SARS-CoV-2 Antigen Rapid Test Kits and Joysbio SARS-CoV-2 Antigen Rapid Test Kits (Colloidal Gold) Class 1 Recall FDA Recall
3-17-22: SD Biosensor Inc. STANDARD Q COVID-19 Home Ag Test Class | Recall FDA Recall
3-2-22: Celltrion DiaTrust COVID-19 Ag Rapid Test (green and white packaging). FDA message
3-1-22: ACON Laboratories Flowflex SARS-CoV-2 Antigen Rapid Test (Self-Testing) (dark blue packaging). FDA message
2-4-22: E25Bio COVID-19 Direct Antigen Rapid Test. FDA message
1-28-22: Empowered Diagnostics CovClear COVID-19 Rapid Antigen Test and ImmunoPass COVID-19 Neutralizing Antibody Rapid Test. FDA message
1-11-22: LuSys Laboratories COVID-19 Antigen Tests (may also be labeled Luscient Diagnostics, Vivera Pharmaceuticals, or EagleDx). FDA message