This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Uses of Neuroleptanalgesia includes 
Select and explain. 
A. As premedication, B. As a supplement to thiopentone, C. To provide sedation during operations under regional analgesia, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: (D) Atropines # Neuroleptanalgesia is a state of apparent indifference to pain produced by combination of potent analgesic with a neuroleptic or major Tranquillizer (here the patient remains conscious but assumes a trance like state in which he is immobile, apparently free from pain) The addition of nitrous oxide leads to unconsciousness and general anaesthesia (Neurolepttoanalgesia)> Neuroleptic combination consists of: Major Tranquilizer (Usually Butyrophenone - Droperidol) + Potent opioid analgesic (Fentanyl or Phenoperidine)> Uses: Neurosurgical operations/neuro-radiological procedures;> Idiosyncrasy to barbiturates;> Ophthalmic surgery/Burns dressing;> As part of balanced anaesthesia; Adjunct to local anaesthetic technique; Invasive radiological procedures/radiotherapy;> Surgery with high incidence of post operative nausea, vomiting. E.g.: Middle ear surgery; Out patient procedures associated with nausea, vomiting.