<prompt> Gastric lavage is contraindicated in poisoning by -KeroseneMorphineBarbituratesCyanide  <response>: Ans is a ie., Kerosene o Gastric lavage is contraindicated in poisoning by pure petroleum distillate eg kerosene, turpentine,o Gastric lavage is indicated for: 1 camphorated hydrocarbons b halogenated hydrocarbons eg organochlorides, methyl chloride, fluorocarbons 3 aromatic hydrocarbons eg benzene, toluene, xylene, aniline,o Contraindication for gastric lavage:Absolute: alkalis, mineral acids, vegetable acids, organic acids except carbolic acidRelative: kerosene or volatile poisons, convulsant poisons except strychinine, hypothermia, bleeding disorder. 