What happens if the instrument shows an invalid sample?

When the Intoxilyzer 8000 indicates an invalid sample, the appropriate course of action is to re-test with a new sample. An invalid sample can occur for various reasons, such as insufficient breath being provided, contamination, or other technical issues that compromise the quality of the test. By re-testing with a new sample, the operator ensures that accurate and reliable results are obtained, which is critical for legal and safety reasons in cases of suspected intoxication. This step aligns with best practices in breath alcohol testing, as it seeks to eliminate the possibility of erroneous data affecting the outcome.

In contrast, ignoring the invalid sample would lead to reliance on potentially flawed results, which could compromise the integrity of the testing process. Calibrating the machine again or turning the device off are not immediate responses to an invalid sample – these actions are typically performed in response to repeated errors or maintenance needs rather than isolated incidents.