Tox Tuesday: The advantages of ELISA drug testing

The enzyme-linked immunosorbent assay (ELISA; pronounced like the name “Eliza”) is a testing technique used to detect and measure substances in biological samples. It’s been one of the most trusted testing methods for nearly half a century and is popular in many fields, for everything from food allergen detection to medical screening for various illnesses. […]

Tox Tuesday: Workplace drug testing

For the second consecutive year, data is showing that the percentage of American workers testing positive for illicit drugs—including marijuana, cocaine and methamphetamines—is on the rise and has increased from 4.3% in 2013 to 4.7% in 2014.

The data, complied by Quest Diagnostics, took into account 6.6 million urine drug tests and 1.1 million oral […]