Understanding Invalid Drug Test Results
An “invalid drug test” result means that the laboratory was unable to determine whether the specimen contained drugs or was free of them. This can occur for several reasons, and it is important to understand what it signifies in the context of drug screening.
Reasons for Invalid Drug Test Results
Sample Contamination: If the sample is contaminated, it can interfere with the testing process, leading to inconclusive results.
Improper Handling: If the specimen is not collected, stored, or transported according to established protocols, it may yield an invalid result.
Adulteration: Attempts to modify the sample to influence results—either by diluting or adding substances—can lead to an invalid test outcome.
Insufficient Sample Volume: If the sample collected is too small for proper testing, it may be deemed invalid.
Temperature Issues: If the temperature of the urine sample (for urine tests) is outside of the acceptable range at the time of testing, it can result in an invalid result.
Technical Errors: Laboratory errors, equipment malfunction, or discrepancies in the testing procedure can also produce invalid results.
Implications of an Invalid Drug Test
An invalid drug test does not necessarily imply substance use or abuse. Instead, it often indicates a need for retesting. Typically, employers, organizations, or enforcement agencies will request a new sample or a confirmatory test when an invalid result occurs.
Steps Following an Invalid Drug Test
- Resampling: The individual may be asked to provide another sample for testing.
- Review Procedures: The collection and handling procedures may be reviewed to identify any potential errors or issues.
- Consultation with a Professional: Individuals may consult with medical review officers or testing professionals to understand the next steps.
Conclusion
An invalid drug test can be a source of confusion, but understanding the reasons behind it and the steps to take can help clarify the situation. It is crucial to proceed with appropriate testing and follow established protocols to ensure accurate drug screening outcomes.