Self-Test For Breath Alcohol: How To Prepare

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How To Prepare

General instructions

• Check the expiration date on the package. Don't use the test if the expiration date has passed.
• Store the testing device correctly. If the device should be stored in the refrigerator or kept in a cool place, make sure you place it in an appropriate storage area.
• Follow the instructions exactly. All test kits come with detailed instructions. Carefully read the instructions that come with your test before using it. Many test kits include a toll-free number you can call for more information.
• Note any special instructions you need to follow before you take the test. These might include avoiding certain foods or medicines.
• Follow every step of the instructions carefully.
  • Prepare and handle everything exactly as the instructions tell you.
  • Follow all the steps in sequence; don't skip any steps.
  • If a step in the test needs to be timed, use a watch; don't guess.
• Know your limits. If you are color-blind or have trouble distinguishing colors, have someone else read the test results for you. For some tests, you need to be able to see color changes in a test area or window.

Specific instructions

• Wait at least 15 minutes after having an alcoholic drink before testing your BAC. Trace amounts of alcohol left in your mouth from a recent drink or the use of mouthwash or mouth spray, such as mouth sprays to relieve a sore throat, can give false results.
• Do not smoke for 1 to 5 minutes before testing your BAC. Do not blow smoke into the device.
• Take at least two separate readings 15 minutes apart.

Last updated:	May 09, 2008
Author:	Jeannette Curtis
Reviewed By:	Kathleen Romito, MD - Family Medicine, R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care, Medical Toxicology
Editors:	Susan Van Houten, RN, BSN, MBA, Tracy Landauer