Thyroid Hormone Tests. Test Overview. Thyroid hormone tests are blood tests that check how well the thyroid gland is working. The thyroid gland makes hormones that regulate the way the body uses energy. The thyroid gland is a butterfly-shaped gland that lies in front of your windpipe (trachea), just below your voice box (larynx).
A clean room (or cleanroom) is an enclosed space in which airborne particulates, contaminants, and pollutants are kept within strict limits. In industry, clean rooms are used in the manufacture and...
A clean bathroom is a sign that the hotel room attendant assigned to the room has put considerable effort into the room's upkeep. Attendants must scrub the toilet, wash the shower/bathtub, scrub the floor and tidy the counter and sink.