<prompt> Percentage of lignocaine use for spinal anaesthesia is:0.5052.502  <response>: 5 lignocaine is used for spinal anaesthesia. Also know: Percentage of lignocaine used for: IV regional anaesthesia - 0.5 Nerve block - 1 Epidural Jelly - 2 Topical - 4 Spinal - 5 Ref: Morgans 4th pg. 270, KDT 6th pg. 357. 