A radioactive iodine uptake (RAIU) test uses a radioactive tracer and a special probe to measure how much tracer the thyroid gland absorbs from the blood. The test can show how much tracer is absorbed by the thyroid gland.
Learn How to Lay Blocks. Start mixing mortar mix as instructed. The first course of blocks should be installed below floor level and inside the foundation trench. This first line of concrete blocks shall rest on top of a layer of mortar mix. Spread mortar along the sides of the block and remove the excess mortar with a trowel. Repeat until the first course has been installed. Check the course with a level. Then, even it out with a thicker layer of mortar, if it is not.
Brace the forms to ensure straight sides. Freshly poured concrete can push form boards outward, leaving your slab with a curved edge that's almost impossible to fix. The best way to avoid this is with extra strong bracing. Place 2x4 stakes and 2x4 kickers every 2 ft. along the form boards for support (Photo 2).