inhalation agents

Question 1

what problems would you use pure o2 on an animal?

Answer 1

anaemia
pulmonary pathology
hypoventilation
recovering from N2O

Question 2

why would you use oxygen as a carrier gas?

Answer 2

it doesn’t depress ventilation
doesn’t cause toxic nervous
doesn’t cause pulmonary changes

Question 3

why would you use nitrous oxide as a carrier gas?

Answer 3

it is odourless
non-irritant
has analgesic properties

Question 4

advantages of using inhalation agents

Answer 4

the depth can be altered
when you alter it, it will occur rapidly
it is eliminated through the lungs

Question 5

disadvantages of using inhalation agents

Answer 5

can be hazardous
need to have a anaesthetic machine and the correct equipment
need to have knowledge about he agent and the circuit that is being used
induction/recovery period can be delayed depending on the function of the lungs

Question 6

what inhalation agents are used?

Answer 6

isoflurane

sevoflurane

Question 7

what are the properties of isoflurane?

Answer 7

good muscle relaxant
good analgesic 
fast recover
CNS depression
poorly tolerated if you mask an animal due to the smell

Question 8

what are the properties if sevoflurane?

Answer 8

non-irritant to the airways
similar cardio-pulmonary effects as iso
hypotension
very little liver metabolism