<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 o Two most commonly used local anaesthetics for caudal block in children areBupivacaine -0.25 concentration in dose of 1 mlkg.Ropivacaine -0.2 concentration in dose of 1.2 mlkg.o For easy calculation of volume :-i 0.5 mlkg for sacral blockade.0.75 mlkg for lower thoracic blockade.1.25 mlkg for upper thoracic blockade. 