I doubt very much that they do. When I got tested, I checked the website of the lab that did the blood work, and they listed the drugs they test for. All were recreational. Also, if you are being tested, you do have a right to know what for. You can ask.
Rec drugs only, and as stated you do have the right to ask what your being tested for. If you have used any kinds of rec drugs, find out what test they use a 6 panel or the 10 panel. As a 10 panel checks for precusors and derivatives along with masking agents. But most things you can have out of your system by the end of a weekend, with a few tricks. Steroid tests for companies or anyone really are pretty expensive, that's why they generally don't do them.