This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Anesthesia, Subject name: Anaesthesia
"Dissociate anaesthesia" is seen with? 
Select and explain. 
A. Propofol, B. Ketamine, C. Thiopental, D. Halothane
B: Ketamine
Answer: B: Ketamine 
Explanation: Ans. b (Ketamine). (Ref: KD Tripathi, Pharmacology 4th, ed., 353)KETAMINE# -Sensitizes heart to effects of adrenaline# -Increases IOT and ICT and intrauterine pressure# -No muscle relaxation, analgesia +++# -Bronchodilator# -Has antiepileptic action# -May cause delirium tremens# -Induces so-called 'dissociative anaesthesia'<MH2005># -Profound analgesia, immobility, amnesia, with light sleep and feeling of dissociation from ones own body and the surroundings.# -Heart rate, cardiac output and BP are elevated due to sympathetic stimulation.# -It has been recommended in head and neck, patients who have bleed, asthmatics and for short operations.# -It is good for repeated use; burn dressing, angiographies, cardiac catheterization and trauma surgery.# -Dangerous for hypertensives and in ischaemic.# -Drug of choice in paediatric, bum, porphyria patients and useful in elderly.