A 10 year old boy consumes stain remover. He presented with 'coffee-coloured' vomiting and restlessness. Most likely diagnosis: September 2012
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.
Oxalic acid
Diluted HC1
Kerosene
Carbolic acid