A 10 year old boy consumes stain remover. He presented with 'coffee-coloured' vomiting and restlessness. Most likely diagnosis: September 2012: (A) Oxalic acid, (B) Diluted HC1, (C) Kerosene, (D) Carbolic acid
Answer is A. Ans. A i.e. Oxalic acid The vomit in oxalic acid poisoning has a coffee ground appearance because the oxalic acid badly corrodes the stomach walls. There may be bloody vomiting for the same reason.