For example, a 5 panel drug test checks for 5 drugs, while a 10 panel drug screen checks for 10 drugs. A standard 5 panel drug urine test is the drug test most frequently used by government agencies and private employers.
While a member of the senate is called a senator, a representative is simply called a congressman or a congresswoman. However, collectively, both senators and representatives are also referred to as congressmen. The word Senate comes from the Latin word senate meaning old man.
Senator Hatch is the Chairman of the Senate Committee on Finance. He is also a member (and former Chairman) of the Judiciary Committee; a member (and former Chairman) of the Senate Health, Education, Labor, and Pensions Committee; and a member of the Joint Committee on Taxation.