Ketamine can be used in all of the
situations except
a) Status asthamaticus
b) For analgesia & sedation
c) Obstetric hemorrhage
d) Ischemic heart disease
Correct Answer - D
D i.e. Ischemic heart disease
Ketamine causes profound analgesiaQ, disociative
anesthesiaQ, and emergence psychomimetic hallucinations and
delirium Q.
Ketamine increases cerebral metabolism, 02 consumption, blood
flow & intracranial pressure.Q
Ketamine
- It causes profound analgesiaQ and dissociative anesthesiaQ
(i.e. patient appears conscious e.g. eye opening, swallowing but
unable to process or respond to sensory input). Ketamine
causes Dissociative AnesthesiaQ by acting on cortex and
subcortical areas (not on RAS) l/t feeling of dissociation from ones
own body and surroundings. Post Operative Delirium and
HallucinationQ is part of this Dissociative phenomenon. Drug of
choice for post op. delirium & hallucination is Lorazepam.Q - It is closest to being a complete anesthetic since it induces
analgesia, amnesia & unconsciousness. - It is associated with emergence psychotomimetic side effects
(delirium, illusions, hallucination)Q. It is less common in children and
pretreatment with lorazepam (drug of choice)Q