Anaesthesia complications workshop

Question 1

What are the top 5 most common anaesthesia complications?

Answer 1

Hypotension
Hypothermia
Abnormal heart rate
Hypoventilation
Difficult recovery

Question 2

what is the minimum acceptable mean arterial blood pressure for a small animal under anaesthesia?

Answer 2

60 mmHg

Question 3

can you list 2 drugs (apart form the volatile agents) most likely to result in hypotension.

Answer 3

Acepromazine and propofol

Question 4

Answer 4

10ml/kg lactated ringers solution IV over 15 minutes

Question 5

Answer 5

option 2

Question 6

Consider that you have administered an alpha 2 agonist (medetomidine) and buprenorphine as a premed- your large dog (BMD) is now bradycardic (47bpm). He’s quiet but rousable in the kennel, CRT is 2 seconds, peripheral pulses moderately strong and synchronous and his mucous membranes are light pink. What action is necessary?

Answer 6

Proceed with induction of anaesthesia

Question 7

Which induction drug causes sinus tachycardia?

Answer 7

ketamine

Question 8

Answer 8

no action required

Question 9

Answer 9

IV dexmedetomidine

Question 10

Answer 10

Suggest the endotracheal tube is suctioned or replaced

Question 11

Answer 11

Reduce the vaporiser setting, increase fresh gas flow, and start IPPV

Question 12

Answer 12

Butorphanol

Naloxone

Question 13

How would you arrange the ECG on a horse in right lateral recumbency?

Answer 13

Base Apex

Question 14

Answer 14

Instigate IPPV
- its likely high CO2 is causing tachycardia, as its a sympathetic stimulant, would be prudent to switch down isoflurane as you instigate IPPV

Question 15

Answer 15

Insert nasal tube

Question 16

Answer 16

triceps myopathy

Question 17

Which vasoactive drug is first choice in the face of hypotension in the horse?

Answer 17

Dobutamine

Question 18

What mean arterial blood pressure would you try and achieve/exceed in horses?

Answer 18

70 mmHg

Question 19

What does absence of a palpebral reflex, and a central, dry eye indicate in equine anaesthesia?

Answer 19

A deep plane of anaesthesia suggestive of anaesthetic overdose

Question 20

Why does ventilating an anaesthetised horse have negative effects on the cardiovascular system?

Answer 20

It increases intrathoracic pressure

Question 21

What would be the average amount of intravenous fluids an adult horse (e.g.450 - 500Kg) would receive intraoperatively per hour during anaesthesia?

Answer 21

5L