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.
Rinse thoroughly. Let it dry for at least 48 hours. Lay two intersecting chalk lines over the floor, so they cross in the center of the floor and divide it into four quadrants. Use a square at the intersection to adjust the lines as you lay them so each angle is 90 degrees. Peel the paper backing off your first tile. Press it to the floor at one corner of the intersection, so two perpendicular edges of the tile are bordered by the two of the lines. Press it firmly to the concrete, using the palms of your hands and all your weight. Peel the paper off the next tile.