<prompt> In pediatric epidural anaestheisia, volume of local anaesthetic given to cause sacral dermatome block is?0.5 -1 mlkg2 - 4 mlkg5 - 10 mlkgNone  <response>: Ans. is a i.e., 0.5 - 1 mlkg Two most commonly used local anaesthetics for caudal block in children are :- Bupivacaine -0.25 concentration in dose of 1 mlkg. Ropivacaine - 0.2 concentration in dose of 1.2 mlkg. For easy calculation of volume :- 0.5 mUkg for sacral blockade. 0.75 mlkg for lower thoracic blockade. 1.25 mlkg for upper thoracic blockade. 