Anasthetic agents Flashcards
1
Q
Nitrous oxide
A
- good analgesic
- poor anasthetic
- quick onset/offset
- indicated in pneumothorax
2
Q
Define analgesia
A
defect of sensation
3
Q
Anasthetics work by…
A
exciting inhibitory receptors
inhibition of excitatory receptors
4
Q
Anasthetics that can be inhaled
A
- Oxygen
- Nitrous Oxide
- Isoflurane
5
Q
Features of good anasthetic
A
does not break down in the body
high potency MAC
Vapourizeable
6
Q
Isoflurane
A
- potent MAC (1.1%)
- side effects CVS/RS, irritable to airway
7
Q
Sevoflurane
A
- not as good MAC as isoflurane
- non-irritable to airways
- fewer side effects
8
Q
What is MAC?
A
Minimum alveolar concentration
is the concentration of a vapour in the lungs that is needed to prevent movement
9
Q
Suxamethonium
A
- Depolarising agent
- Neuromuscular blocking agent (mimics ACh)
- Rapid onset offset
- Short half life ~ 2min
- Plasma cholinesterase
- Multiple side effects
10
Q
Propofol
A
- anti-emetic
- anti-epileptic
- painful to inject
- CVS/RS effects
- minimal accumulation
