Drug tests are available for opioids, methamphetamine, cocaine, marijuana, barbiturates, phencyclidine, ...
Students will not be notified in advance of any drug tests. A Texas school district will randomly drug test students enrolled in extracurricular activities throughout the year, it announced in a ...
The rate of substituted or invalid drug tests — an indication of tampering to hide drug use — rose more than six-fold in 2023 versus the prior year, according to a Quest Diagnostics analysis of 9.8 ...
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