Blood Drug Testing

Blood test/Full medical checkup (for a new job).. do they test for drugs or just for serious illneses/disease?

I am curious on this. Do these medical checkups also include test on drug usage or intake. *Curiosity kills the cat*

Public Comments

1. The employer often gets a full set of tests since they are about the same cost as a more limited series. I know someone who had a liver enzyme abnormality (not a disease just a freaky set of triglyceride levels). The company withdrew its job offer until he proved he was not an alcoholic whose liver enzymes were ruined by cirrhosis of the liver.
2. It's entirely up to company policy. Comprehensive drug screens can be pretty pricey, so not every company wants to pay for them.