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.
High Hgb Results. A blood test that reflects a high Hgb result may indicate that your kidneys are not functioning as they should be. According to mayoclinic.com, your kidneys may be eliminating too much protein, or that your bone marrow is overproducing red blood cells.High Hgb may also denote dehydration or possibly a lung disorder.abtestsonline.org explains that the purpose of an Hgb blood test is to determine the amount of hemoglobin that exists in your blood as well as, how well it is supplying your blood cells with oxygen.