45 years male, blood sample gives purple-brown colour in Ehrich&;s solution, the substance is: (A) Urobilinogen, (B) Conjugated bilirubin, (C) Unconjugated biliburin, (D) Haemosedrin
Answer is A. Bilinogens(UBG and SBG) react with Ehrlich solution to form red/brown color. Ehrlich&;s aldehyde reagent(para dimethylamino benzaldehyde) don&;t react with any other forms of bilirubin or hemosiderinRef: Textbook of biochemistry for medical students, seventh edition, page no: 279