How mouth swab test if you use wet?

A mouth swab test, often used for drug or alcohol testing, requires a dry swab to collect saliva effectively. If the swab is wet before use, it may not absorb the saliva properly, leading to inadequate sample collection and potentially invalid test results. It's essential to ensure the swab is dry and used according to the manufacturer's instructions for accurate results. If a wet swab is accidentally used, it's best to replace it with a new, dry swab.