An association football (soccer) match is presided over by a referee, whom the Laws of the Game give full authority to enforce the Laws of the Game in connection with the match to which he has been appointed (Law 5). The referee is oftentimes assisted by two assistant referees, and sometimes by a fourth official.
Barfoed's test. Barfoed's test is a chemical test used for detecting the presence of monosaccharides. It is based on the reduction of copper(II) acetate to copper(I) oxide (Cu2O), which forms a brick-red precipitate.
The purpose of this program is to ensure quality laboratory testing. POC blood glucose testing in hospitals is under the purview of CMS. Although use of POC devices is a standard of care in virtually every hospital in the United States, the off-label status of this practice is not in accordance with CLIA regulations.