High spinal anaesthesia characterized by: September 2012: (A) Hypeension and tachycardia, (B) Hypeension and bradycardia, (C) Hypotension and bradycardia, (D) Hypotension and tachycardia
Answer is C. Ans. C i.e. Hypotension and bradycardia Spinal anaesthesia Site of SA in adults: L2-L3/ L3-L4 space Site of SA in children: L4-L5 space Site of action of SA: Nerve roots of cauda equina Fibres which are blocked earliest: Autonomic pre-ganglionic fibres (sympathetic) Percentage of xylocaine used in SA: 5% Feature of high spinal anaesthesia: - Hypotension and - Bradycardia