Which of the following produces dissociated anaesthesia:
A. Ketamine
B. Propofol
C. Thiopentone
D. Enflurane
A. Ketamine
B. Propofol
C. Thiopentone
D. Enflurane
The correct answer is : A. Ketamine
NOTE: Ketamine dissociates thalamus from the limbic cortex.
Thalamus relays sensory inputs from R.A.S (reticular activating system)
to limbic cortex.Clinically this produces dissociative anaesthesia.In
this state the patient appears conscious (e.g eye
opening,swallowing,muscle contracture); but is unable to process or
respond to sensory input.
