<prompt> Shortest acting local anesthetic agent is -ProcaineLidocaineTetracaineBupivacaine  <response>: Ans. is a i.e., Procaine o Chlorprocaine is the shortest acting LA. Amongst the given options procaine is shortest acting.Local Anesthetic agentsShort duration 30 min Low potencyIntermediate duration 30-90 min Intermediate potencyLong duration 120 min High potencyChlorprocaine shortest actingLignocaineMepivacaineBupivacaineTetracaineProcainePrilocaineCocaineEtodicaineRopivacaineDibucaine longest acting 