<prompt> A 5 year old boy suffering from Duchenne Muscular dystrophy and polymyositis has been fasting for 8 hrs and has to undergo tendon lengthening. Which anaesthesia should be usedInduction by IV thiopentone maintenance by N2O halotheneInduction by IV propofol and maintenance by N2O O2Induction by IV scoline and maintenance by N2O HalothaneInhalation N2O, O2 halothene  <response>: Inhalational anaesthetic is the method of choice in children for induction. Intravenous induction is used when induction with mask inhalation is contraindicated full stomach or if child comes in the operation theatre with intravenous line in situ.Sevoflurane is inhalational agent of choice, but it is not provided in the options.Halothane is the second choice inhalational agent and it is used for induction as well as for maintenance. Halothane is used in N2O O2 mixture like other inhalational agent. So, best answer of this question is option d. i.e. inhalational N2O, O2 halothane.Note - Some books have given option a as the answer. Option a is not wrong, but amongst the provided options, option d is best. Option a is also correct but not the answer of this question as intravenous induction can be used when induction by mask is contraindicated or child already has intravenous line before coming to OT. Propofol or thiopental are used for induction and then maintenance is done by halothane or isoflurane in N2O O2 mixture.About option cSuccinylcholine scoline is contraindicated in muscular dystrophy. 