HORSHAM, Pa. — Inside the sprawling complex of NMS Labs in Horsham, scientists are mapping the contours of a crisis.
The toxicology lab, one of the largest in the country, tests blood and tissue samples for a host of substances, helping clinicians, law enforcement, and medical examiners’ offices investigate everything from suspicious deaths to suspected arsenic exposures.
But over the last decade, as the overdose crisis has worsened, the lab — which also has branches in Texas and South Carolina — has been steadily cataloging overdose deaths in the hundreds of thousands of samples it receives each year.
