What is a potential consequence of a contaminated oral cavity test?

The breath test results may be invalid due to a contaminated oral cavity test. Contamination can occur when substances in the mouth, such as residual alcohol from mouthwash, food, or other alcoholic beverages, interfere with the measurement of blood alcohol content. If any contamination is present, it can lead to artificially inflated results, leading to an inaccurate determination of a person's blood alcohol concentration. This invalidation is crucial because breath tests are relied upon in legal and safety scenarios, and ensuring their accuracy is vital for fair and just outcomes. Therefore, if contamination is suspected, the test results should not be accepted as valid without further assessment or re-testing.