anesthesia

Question 1

define sedation

Answer 1

rousable state of central nervous system depression

Question 2

what 3 things form the triad of anaesthesis/liverpool triad?

Answer 2

1. hypnosis
2. analgesia
3. muscle relaxation

Question 3

what is the ideal stage/plane of anaesthesia?

Answer 3

stage 3 - plane 1 or 2 (NOT 3)

Question 4

describe what you would observe if a patient was in too deep a plane of anaesthesia

Answer 4

ventilation: jerky
pupil: dilated
eye: central
reflexes: corneal reflex but no palpebral reflex

Question 5

what are the 3 main things to consider before putting and animal under GA?

Answer 5

1. stabilise pre-existing conditions (fluids, analgesia, anxiolysis)
2. withhold food and water (6-8hours)
3. laboratory testing

Question 6

what are the 4 phases of general anaesthesia?

which of these stages has the greatest risk of complication? (**)

Answer 6

pre-medication

induction **

maintenance

recovery **

Question 7

describe the following ASA categories:

I

II

III

Answer 7

I - normal healthy patient

II - patient with mild systemic disease (not limiting normal function)

III - patient with severe systemic disease (does limit normal function)

Question 8

describe the following ASA categories

IV

V

Answer 8

IV - patient with severe systemic disease that is a constant threat to life

V - moribund patient that is not expected to survive without the procedure

Question 9

why is hypothermia a major concern in the first 3 hours post GA?

Answer 9

hypothermia can reduce the drug metabolism in a patient and therefore prolong recovery