Anesthesia of Ectotherms Flashcards
What are examples of ectotherms?
Snakes, lizards, crocodiles, chelonians, amphibians
T/F: ectotherms have high anaerobic tolerance
TRUE. They can hold their breath for prolonged periods
How many heart chambers do ectotherms have?
Three chambers- 2 atria and 1 ventricle
T/F: Systemic arterial blood pressure is lower
TRUE
Why should IM injections caudal to the body be avoided?
Nephrotoxicity can occur or rapid excretion of the drug
T/F: Ectotherms have no diaphragm
TRUE
T/F: Ectotherms have incomplete tracheal rings just like dogs/cats
FALSE- they have complete cartilage rings
What injectable anesthetics are used in snakes?
Ketamine and medetomidine
T/F: If you are weighing a chelonian (turtle) with the shell on, the drug dose should be calculated based on what the scale shows.
FALSE-the dose should be lower than what the scale shows due to the added weight of the shell. If you use that weight, you could risk overdosing the turtle
T/F: Crocodiles are commonly darted for human safety.
FALSE- NOT darted due to scutes and danger of drowning
Where are the injectable drugs administered in crocodiles?
Leg or base of tail
T/F: Top jaw tends to open when paralyzed
True
Gallamine is used for what in crocodiles?
Used for immobilization-NOT sedation
What is the MOA of gallamine?
Competitive non-depolarizing neuromuscular blocking agent-blocks and binds ACh
What can gallamine be reversed with?
Neostigmine
