A radioactive iodine uptake (RAIU) test may also be done to find problems with how the thyroid gland works, such as hyperthyroidism. For more information, see the medical test Radioactive Iodine Uptake Test. Another type of thyroid scan, a whole-body thyroid scan, may be done for people who have had thyroid cancer that has been treated. The whole-body scan can check to see if cancer has spread to other areas of the body.
There are 435 seats in the House. In the 113th Congress, there were 233 Republicans, 200 Democrats and two vacancies at the beginning of the term. There are 100 seats in the Senate. In the 113th Congress, there were 53 Democrats, 45 Republicans and two independents at the beginning of the term.
Members are usually affiliated to the Republican Party or to the Democratic Party, and only rarely to a third party or as independents. Congress has 535 voting members: 435 Representatives and 100 Senators. The House of Representatives has six non-voting members in addition to its 435 voting members. These members can, however, sit on congressional committees and introduce legislation.