The latest AHA 2010 for CPCR in basic life suppo by two individuals for cardiac external massage & ventilation in adult is?

Anaesthesia

The latest AHA 2010 for CPCR in basic life suppo by two individuals for cardiac external massage & ventilation in adult 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?