This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 2, Subject name: Forensic Medicine
Emesis is not contraindicated in 
Select and explain. 
A. Kerosene poisoning, B. Nux vomica poisoning, C. Oxalic acid poisoning, D. arsenic poisoning
D: arsenic poisoning
Answer: D: arsenic poisoning 
Explanation: Emesis should be used only if there is difficulty in obtaining gastric lavage. Vomiting can be produced if the medullary centers are still responsive. Due to danger of aspiration of gastric contents, vomiting should only be induced in a conscious patient. Contraindications: Severe hea and lung diseases. Advanced pregnancy. Kerosene poisoning In cases of CNS depression, seizures or rapidly acting CNS poisons (camphor, cyanide, tricyclicantidepressants, propoxyphene and strychnine).