17: Bird and reptile anaesthesia Flashcards
(47 cards)
Why is any period of apnea a concern in birds?
Low functional residual capacity
Which positions are not good for birds for long periods?
Dorsal or ventral recumbency
Why can fasting debilitate birds?
Poor glycogen storage, esp in liver disease
Above what PCV does a bird need fluids?
55%
For how long do you need to fast birds?
Until crop is empty - 2-3 hours in large parrots, overnight in birds of prey
What can you give birds for a pre-med for minor procedures and diagnostics?
Ketamine with diazepam or midazolam
Why do you not give birds atropine or glyco?
Makes mucus thicker so risk of obstruction
Why don’t you put birds in an induction chamber?
Will flap
Which circuits can you use for birds?
Ayres T piece or Bain
Why don’t you use a cuffed tube in birds?
Complete tracheal rings
How can you intubate a bird if operating on the head?
Abdominal air sac cannulation
How can you monitor bird HR?
Doppler or oesophageal stethoscope
What can still happen to birds even if well oxygenated?
Hypercapnic
What is bird body temp?
39-41
When do you remove the ET tube in birds?
Once jaw tone present
How soon should you offer birds food or water?
Immediately
For how long should you keep birds at a high ambient temp?
Until signs of hyperthermia
What happens to drug metabolism if a reptiles temp drops?
Also decreases
Where does the trachea bifurcate in chelonia?
Just behind the larynx
Why do chelonia have poor lung perfusion if apneic?
Incomplete ventricular septum
Do you need to starve herbivores?
No
How long do you starve insectiores?
18-24h
How long do you starve carnivores?
2-7 days
What can atropine cause in reptiles?
Ileus
