Impact of Pre-spinal Atropine on Post Spinal Hemodynamics and Cardiac Output Measured by Electrical Cardiometry in Caesarean Delivery

patients will receive 0.01 mg/kg intravenous atropine in 5 ml normal saline 0.9 % before induction of spinal anaesthesia

patients will receive the same volume of isotonic saline 0.9% 5ml (control group) before induction of spinal anaesthesia