MOD 20 - COURSE 1 - SEDATION, LOCAL AND GENERAL ANAESTHESIA Flashcards
1
Q
A
2
Q
who made the anaesthesia triad and when
A
1950, Rees and GRAY
3
Q
what is the traid of anaesthesia
A
- loss of consciousness (sleep, narcosis
- muscle relaxation (still)
- anaglesia (pain free)
4
Q
whats the use of pre-anaesthetic agents
A
- other drugs to maintain anaesthesia = modify clincial signs seen at those levels
5
Q
whats ana example of a pre-adnaesthetic agents
A
- thiopentone and halothane - earlier stage = less wel defined - when usig quicker acting induction agents
6
Q
what is stage 1 of anaesthesia
A
- induction - period between intials administration of induction agent - and loss of consciousness
- considered conscious - may display- fear, flight, fight traction - modified using pre-anaesthetic drug
- this phase = Voluntary Excitement phase - Exhibiting voluntary movements during this period
7
Q
what is stage 2 of anaesthesia
A
- involuntary excitement
- onsidet of unconsciousness - last until rythmic breathing = established
- respiration , heart rate - irregular
- may be uncontrolled movements, vomiting, breath holding, pupillary dilation
- combination of spastic movements, vomiting and irregular respiration - can comprimise airways - rapid acting drug to minimise times = used
8
Q
what is stage 3 of anaestheia
A
- this stage = divided into 3 places
- plane 1 = light - minto exams - and surgical procedures = possible - itubation = posisble execpt in cat which requires local anaesthetic depress laryngeal reflexes
- plane 2 = medium - suitable for most procedures - surgical
- plane 3 = depth = unnecessary for most durgery - exept when profound muscle relaxation = required - to enhance surgaical exposure - mscle relaxation = can be chieved when other drugs and anaesthetic techniques = prevent aniamsl this deep
9
Q
whats stage 4 of anaesthesia
A
- excssively deep - need to react quickly if animal reaches stage 4 - can lead to detah due to severe cardiovascular and respiratory depression - stage 4 = overdose
10
Q
how can you define anaglesia
A
- defined as the absence of the sense of pain
11
Q
what is the definition of general anaesthesia
A
- state of controllable, reversible insensibility in whcihc sensory perception and motor response = markedly depressed
12
Q
what is the definition of local anaesthesia
A
- technique to induce absnece of sensation in part of the body, generallly for aim of inducing local anaesthesia that is local insensitivity to pain
13
Q
what is the defintion of a CNS depressant
A
- any agent whcih modifes function by depressing sensory or motor responses in the CNS
14
Q
what is the definition of anxiolysis
A
- state of tranqquility - and clamness in which patient = relaxes, awake and unconcerned with its surrounding
- with the suffiecient stimuli the patient can be arroused - a drug that produced anxiolysis is claled anxiolytic - drugs = known too as tranquilizers
15
Q
what is teh definition of sedation
A
- mild degree of transq and clamness in which the patient is relaxed - awake but calm
- patient = arroused with sufficient stimuli, sedatives act by does depression of the cerebral cortex
16
Q
what is teh definition of narcosis
A
- deep sedation with a degree of anaglesia - srug that procuded narcosis = called narcotic
17
Q
what is the definition of hypnosis
A
artifically induced sleep
