Best Answer: NH4 is not a stable chemical on its own. It is a cation and it is written as NH4+ and needs a negatively-charged counter ion. The ion is called Ammonium. Ammonia is NH3 Ammonium hydroxide is NH4OH but dissociates in water as NH4+ and OH-Ammonium bromide is NH4Br.
Signs and symptoms. Jaundice. Gilbert's syndrome produces an elevated level of unconjugated bilirubin in the bloodstream, but normally has no serious consequences. Mild jaundice may appear under conditions of exertion, stress, fasting, and infections, but the condition is otherwise usually asymptomatic.
UGT1A1, for example, refers to a specific enzyme in this family. Gilbert's syndrome is due to a genetic mutation that causes only 30% of the enzyme UGT1A1 to be produced. This is the only enzyme that detoxifies bilirubin, a toxic product of the natural breakdown of red blood cells. This enzymatic shortage leads to an excess of bilirubin (and other toxins) in the blood serum.