A thyroid scan can show the size, shape, and location of the thyroid gland . It can also find areas of the thyroid gland that are overactive or underactive. The camera takes pictures of the thyroid gland from three different angles. The radioactive tracer used in this test is either iodine or technetium.
The current U.S. Senate has 54 Republicans and 45 Democrats (including one independent). The 2016 Senate election takes place on November 8, 2016. There are 34 seats up in 2016, of which 24 are held by Republicans. Democrats will need to gain 4 or 5 seats to take control.
Currently, the Senate Minority Leader is Republican Mitch McConnell from Kentucky. With the current Senate composition having a Democratic Majority, McConnell acts as the main spokesman for the Republican agenda in the Senate. Senate Republicans currently hold 41 seats in the Senate, while Democrats hold the majority at 57. The practice of instituting party leaders in the Senate can be dated back to 1920, when the Democrats at the time elected their first floor party leaders. At the time, the Democratic party was in the minority. Senate Republicans would also adopt the practice, but will not do so until 1925, at which time they would hold the majority.