<prompt> True about subarachnoid block spinalnesthesiaCannot be used in infant childrenCan be given by unskilled doctorMay be used when I.V access is not possible for intravenous drugsHypotension is most common side-effect  <response>: Ans: D Hypotension... Note:Due to associated serious complicationsfmany are life threa tening, ft must not be given by unskilled doctorsPreparation for Subarachnoid blockspinal anesthesia Lee 13th479 Obtaining venous accessCommencing intravenous infusionf to minimize post spinal hypotensionSUBARACHNOID BLOCKfSPINAL ANESTHESIA Ajay Yadav 5 th155-61It is most commonly used anaesthetic technique 3 In adult eve is usually L3-4Indications: orthopaedics surgery, general surgeryfpelvic perineal, gynecological obstetrical surgery, urological surgeries etcMost commonly drugs used in India are-xylocainelignocaine SensoricainebupivacineHypotension is most common side-effect. It is managed by preloading intraoperative fluids vasopressors. For this good i.v acess is very important Other side-effects complications are- bradycardia, apnoea, nausea vomiting, cardiac arrest, high spinal, post spinal headach, meningitis, spinal cord ischemia etcSubarachnoid blockspina! anesthesia in children Ajay Yadav 5th161In children it should be given in lower spaceL4-5As children are usually free of haemodynamic side effects therefore preloading is not required till the age of 8 yearsDue to more CSF volume, dose of local anaesthetics required is more duration of block is less 