A toxicology test is often used by potential employers to determine whether
or not an individual has been under the influence of an illegal drug.
The test is typically performed by taking a saliva or urine sample. Blood
tests can also be used, but they require more effort and are more intrusive
to the subject. Toxicology tests range in use from searching for one specific
drug to screening for as many as 30 different drugs at a time.
They are particularly important because so much can depend on their results—getting
hired or fired, being accused of steroid use in athletic contests, and
diagnoses of medical conditions, to name a few.
Indeed, they may become even more important in Texas, depending on the
success of a bill introduced in the Texas Legislature designed to make
receipt of aid from the Texas Temporary Assistance for Needy Families
Program conditional upon a clean drug test.
But how accurate are they?
Toxicology tests are generally pretty reliable. But there are a few factors
that may lead to inaccuracies:
- Mistaken drug identity. Some medicines taken to relieve coughing which
don’t contain narcotics are sometimes labeled as narcotics in the
- Blood in the urine. This condition can lead to misleading toxicology results.
- Consuming certain types of food. For example, a larger than normal intake
of food containing poppy seeds can result in an inaccurate drug reading.
- An insufficiently large urine sample.
Despite being used so widely, drug tests may yield inaccurate results—false
negatives or false positives—when these factors are at play.
If you have been charged with a drug crime, you need an attorney. Before
you agree to a drug test,
contact the Kyle Law Firm immediately. Our experienced
San Marcos drug charges attorneys will give you the representation you need.