Best way to prevent hypotension during spinal anaesthesia

Best method to prevent hypotension is to preload the patient with crystalloids or colloids. B, C, D are used as a pa of treatment not preventive measures. Prophylactic fluid preloading before spinal anesthesia has been a routine procedure to prevent maternal hypotension during cesarean delivery. Unlike colloid, timing of infusion of crystalloid may be impoant because of its sho stay in intravascular space Ref Robbins 9/e pg 765