Sensitivity in drug testing is often misunderstood. While some labs claim higher sensitivity, it’s crucial to understand its appropriate use:
Useful Sensitivity:
- Analysing low-weight samples.
- Detecting problematic drugs/metabolites.
- Identifying drug exposure in children.
- Analysing low-weight samples.
Limitations:
- Cut-offs ensure accurate drug abuse identification.
- Low concentrations below cut-offs have limited interpretive value.
Solicitors often question if drug use results from:
- Association with drug users.
- Spiking incidents.
- Exposure to drug smoke.
- Use of mouthwash/hand sanitizer.
- Association with drug users.
Using Society of Hair Testing (SoHT) cut-offs, we confidently attribute results above these levels to actual drug use, not accidental exposure.