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.
In 2010, the last time this Senate class was contested, Republicans netted six seats. And six years before that, in 2004, Republicans netted four seats. Map 1, the current occupants of the 34 Senate seats that make up 2016âs Senate Class Three, shows the obvious Republican challenge.