<prompt> The operative treatment in Hirschsprungs disease is only undeaken when child -Is 2 years of ageIs at least 8 kg in weight and thrivingHas no distension of abdomenHas failed to respond to conservative treatment  <response>: Ans. is b i.e., Is at least 8 kg. in weight and thriving 10 kg is given in both Bailey Schwaz 