General anesthetics

Question 1

isoflurane

Answer 1

commonly used, potent anesthetic
is less blood soluble than halothane
potent ventilatory depressant
maintains CV properties

Question 2

sevoflurane

Answer 2

potent anesthetic
is less blood soluble than isoflurane
pleasant smelling anesthetic that is not irritating to the airway
commonly used in pediatrics patients
rapid induction, rapid recovery
minimal cardiac effects

Question 3

desflurane

Answer 3

potent anesthetic
contraindicated in brain injuries due to increased sympathetic activity (inc CO and BP)
respiratory irritant and respiratory depression
rapid emergence

Question 4

nitrous oxide

Answer 4

incomplete anesthetic
insoluble in blood
good analgesic
not respiratory irritant
doesn't sensitize heart to catecholamines and doesn't increase intracranial pressure

Question 5

thiopental

Answer 5

ultrashort acting barbiturate, making it useful in induction
fast actions on the brain followed by complete distribution to inert tissues (sk. m.) means quick induction and quick recovery

Question 6

ketamine

Answer 6

NMDA receptor antagonist
appear to be awake, not awake
stimulates sympathetics

Question 7

etomidate

Answer 7

GABA antagonist
hypnotic agent used only in induction
causes adrenal suppression

Question 8

propofol

Answer 8

similar to thiopental but quicker
indicated in patients undergoing quick procedures
peripheral vasodilation and hypotension