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.
Symptoms of the following disorders can be similar to those of Gilbert syndrome. Comparisons may be useful for a differential diagnosis. Crigler-Najjar syndrome is a rare genetic disorder characterized by elevated levels of bilirubin in the blood (hyperbilirubinemia). Bilirubin is a yellow waste product that is formed when old or worn out red blood cells are broken down (hemolysis).