A 23 years old male presents with ingrown nail. The ingrown nail was removed after administering a ring block. The mechanism of action of the local anesthetic used is

Anaesthesia

A 23 years old male presents with ingrown nail. The ingrown nail was removed after administering a ring block. The mechanism of action of the local anesthetic used is

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?