Rates for employees with positive drug tests on the rise

drug testing lab laboratory

The number of employee drug tests coming back with positive results for illegal drugs is on the increase.

That information comes from Quest Diagnostics.

The company says positive test results are at a 10 year high.

About 4 percent of 9.5 million urine deposits in 2015 were positive, which is up for 3.5 percent in 2010.

Positive results for cocaine, amphetamines and opiates are up.

Marijuana was the most detected drug.