Anaesthetic Emergencies Flashcards

1
Q

How many anaesthetic procedures are without risk to the patient?

A

None

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2
Q

What can aid in reducing the risk of anaesthetics?

A
  • Monitoring
  • Adequate pre-anaesthetic assessments
  • Appropriate use of anaesthetic drugs
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3
Q

What is the most common cause of anaesthetic emergencies

A

Human error

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4
Q

Why might human error occur? Name 4

A
  • Fatigue
  • Failure to take adequate history / pre-op assessment
  • Personnel rushed or pre-occupied
  • Lack of familiarity with circuits and drugs
  • Inattentiveness
  • Incorrect admin of drugs
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5
Q

What equipment errors may cause anaesthetic emergencies? Name 3

A
  • Vaporiser problems
  • Misassembly (though also human error)
  • APL valve problems
  • ET tube problems
  • Empty O2 tank
  • CO2 absorber exhausted
  • HUMAN ERROR with equipment
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6
Q

Name 3 emergencies caused by anaesthetic agents?

A
  • ACP used in hypovolaemic patients
  • Halothane may cause cardiac dysrhythmias
  • Not ensuring sedative and analgesic have been used
  • Xylazine may cause bradycardia and vomiting
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7
Q

How is the risk of emergencies by anaesthetic agents reduced?

A
  • Use of appropriate pre-med
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8
Q

How can patient variation create emergencies?

A
  • Patient conditions
  • Patient may suffer from a disease already
  • Neonates unable to fully excrete drugs (liver not fully developed)
  • Health conditions e.g. geriatric, obese
  • Brachycephalics
  • Predisposition e.g. dobermans and vonwillebrands disease, sighthounds dont have much body fat
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9
Q

What are the principles of emergency care? (Theres 5)

A
  • Alert the VS
  • Stay calm and don’t panic
  • Prioritise
  • Be aware where the emergency kit is kept
  • Keep emergency drug dosage sheets in view or in easy access points
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10
Q

What 5 things should you check with the emergency crash kit?

A
  • where is it located
  • drug dosage sheets
  • Replace used items
  • Stock take regularly
  • Check expiry dates regularly
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11
Q

Name the 8 drugs commonly found in the crash kit?

A
  • Atropine
  • Adrenaline (epinephrine)
  • Lignocaine (without epinephrine)
  • Diazepam (valium)
  • Narcan (naloxone)
  • Dopamine / dobutamine
  • Doxopram (dopram)
  • Atipamezole (antisedan)
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12
Q

What is the function of atipamezole?

A

Alpha-2-adrenoreceptor antagonist

- Reverse or partially reverse effects of medetomidine

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13
Q

What is the function of Doxapram (dopram)

A
  • Analeptic drug

- Stimulates respiratory and central nervous system

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14
Q

Why is dopamine / dobutamine given?

A
  • Increase force of myocardial contraction
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15
Q

What is Diazepam given?

A
  • Treats seizures
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16
Q

Why is lignocaine given?

A

To treat arrhythmias

17
Q

Why is adrenaline given?

A
  • Indicated for bradycardia / cardiac arrest

- Increases heart rate and force of contraction

18
Q

Why is atropine given?

A

Cases of bradycardia

Reduces vagal tone

19
Q

What are the four common anaesthetic emergencies? (4)

A
  • Patient too light
  • Patient too deep
  • Respiratory arrest
  • Cardiac arrest
20
Q

How many patient survive CPR (%)

A

10%

21
Q

What key equipment is there for anaesthetic emergencies? (4)

A
  • Defibrillator
  • Self-inflating resuscitator bag (ambu bag)
  • Urinary catheter
  • IV catheter
22
Q

When is a defibrillator used?

A
  • In cardiac arrest
  • To stimulate heart beat and myocardial contractions
  • May be used in certain arrhythmias
23
Q

When is a self-inflating rususcuitator bag used?

A

Respiratory arrest to provide IPPV

24
Q

Why is a urinary catheter used in an emergency?

A

To administer drugs via ET tubes

25
Q

Why is an IV catheter used in emergencies?

A

Emergency access for drugs, fluids etc.

26
Q

What are the six key golden rules when there is an anaesthetic emergency?

A
  • Stay calm and alert the vet
  • Turn off the vaporiser
  • Make sure you know how to deliver IPPV
  • Be familiar with cardiac compressions
  • Have a well stocked crash kit/box to hand with drug dosages
  • Team work