But he sent out a sample of Vine's blood for a toxicology screen, anyway.

A toxicology screen examines blood, urine, or hair for the presence of drugs.

We'll know more when the toxicology screens come back in a couple of weeks.

I followed Claire's finger down the results of the toxicology screen.

Blood and urine tests, including a toxicology screen, may be done.

"Maybe we should extend the toxicology screen," Greg said ominously.

So we decided to expand our toxicology screen to look for drugs other than the usual hormones.

The toxicology screen later came back negative for everything but a minimal amount of methadone.

A normal toxicology screen is set up to detect drugs of abuse.

She told him what she wanted from the toxicology screen, reading off her notes.