80-year-old patient is admitted for open reduction and internal fixation of a fracture of the femur . Which one of the following technique is ideal anesthetic technique for this patient?

Anaesthesia

80-year-old patient is admitted for open reduction and internal fixation of a fracture of the femur . Which one of the following technique is ideal anesthetic technique for this patient?

Allergy in immediate perioperative period is due to:

All of the following are true about lumbar puncture except:

Which of these is most commonly used as pre-anesthetic medication?