Local anaesthetics

Question 1

Inhaled analgesics - general maintaining anaesthetics

Answer 1

Nitrous oxide “laughing gas”
Maintains analgesia

also desflurane, desflurane, seroflurane.

Question 2

IV analgesics - general anaesthetics 
 (work by blocking the nerve signals) 
act on CNS
ion channels and membrane receptors 
fat soluble.

Answer 2

Profofol - non barbituate (think Michael jackson )
ETOmudate - IV anaesthetic
Thiopental - barbituate - v brief
ketamine - shocked patients/children. Hallucinations

Question 3

Benzodiazepines ( again think michael jackson)

Answer 3

Taken orally, IV and rectally.
Increase GABA in brain.GABA is an inhibitory neurotransmitter.
midazolam, temazepam diazepam (valium )

used as pre-med or prior to dental treatment. calm the nervous system .

Highly addictive and can cause respiratory depression. Interact with alcohol.

Question 4

Muscle Relaxants

Answer 4

Block transmission in motor nerves. Reduce the need for deep anaesthesia, relax vocal chords, require assisted respiration.

Pancuriam, pancronim (ach antagonist, competes with nicotinic receptors), suxamethonium (depolorising antagonist. Psendochineterase enzyme).