Reptiles + Chelonian Considerations Flashcards
What is the most common method of induction for small Lizards?
-
Induction Chamber
Or -
Sealed plastic bag
With
* Isoflurane + O2
Preferred method depends on the species, avaliability + experience
What reflex is the main indicator for sufficent induction of anaesthesia/loss of consciousness?
The Righting Reflex
What is the Righting Reflex?
The ability to regain an upright position after being:
1. Tilted
1. Pushed
1. Tipped
What reflex can be used to assess the level of consciousness/induction of anaesthesia in Reptiles?
The Righting Reflex
Name a common method of Induction and Maintenance of anaesthesia for Snakes?
- Induce with conscious Intubation
- Maintain ventilation w/Isoflurane
Why are Snakes considered fairly straightforward to intubate?
As their Glottis is positioned rostrally, in their mouth
Name 2 ways to Intubate a Snake with
(Equipment)
- Specialised ET tube
- Adapted (short) Urinary or IV catheter
How far should you insert the specialised ET tube into a Snake?
1-2 cm beyond the Glottis
For larger Snakes and Lizards, how can you induce and maintain anaesthesia?
- Injectable induction agent of choice (Like Alfaxalone)
- Maintain on Propofol + O2
What vein would you inject an induction agent into for larger Snakes + Lizards?
Ventral Tail Vein
What 2 exotic species are a great challenge to induce and maintain anaesthesia?
- Chelonians
- Rabbits
What 2 aspects of Chelonians are considered so difficult, under anaesthesia?
- Breath-holding abilities
- Inaccessible veins
Name 2 methods of inducing anaesthesia in Chelonians.
Include the drug, route + site of administration.
Method 1
* Propofol or Alfaxalone
* IV
* Into the Jugular, Subcarapacial sinus or Dorsal tail vein
Method 2
* Ketamine + Midazolam or Medetomidine
* IM
What 2 induction agents would you give IV to a Chelonian?
- Propofol
Or - Alfaxalone
How would you administer the induction agents Propofol OR Alfaxalone to Chelonians?
Give 3 example routes.
- IV
- Jugular
- Subcarapacial sinus
- Dorsal tail vein
List 2 induction agents, that can be administered IM, to Chelonians
- Ketamine + Midazolam
- Ketamine + Medetomidine
What should you be aware of when intubating Chelonians?
The trachea bifurcates, cranially
Bifurcates = splits into 2
True or False.
You should use a long ET tube for intubating Chelonians.
False.
You should use a short one.
How far should you insert the ET tube, when intubating a Chelonian?
Just beyond the Glottis!
(To avoid only ventilating 1 lung)
Why should you only insert the ET tube just beyond the Glottis in Chelonians?
To avoid only ventilating 1 lung
