Small Animal

Small Animal Anesthesia - Equipment

by Dr. A

​Types of ETT's

​A:  Murphy, 11mm, silicone cuff

B:  Cole, 2.5mm

C:  Murphy, 8mm, PVC, cuff

D:  Murphy, 4mm, red rubber, cuff

Multiple Choice

The function of the hole ("J") is to:

• Minimize risk of tube obstruction

• Allow intubation of one bronchial tube

• Allow fluids to escape the tube

• A

​Anesthetic Mask

• ​Used to administer O2 and Ax gases to non-intubated patients

• Used for induction and maintenance of anesthesia in very small animals

Open Ended

What is one disadvantage to using a Mask for Induction and Maintenance of general anesthesia?

Multiple Choice

The tank on the far right is the same as our tank outside. What's in it, and what size is it?

• Oxygen "E"

• Nitrous Oxide "E"

• Oxygen, "H"

• Carbon Dioxide "H"

Open Ended

The CO2 tank on the left and the O2 tank on the right have different hole spacing.  Why?

​Minimum: 60ml/kg

​20 kg patient:

​

​60ml/kg X 20kg = 1200 mL

​

​Have to pick the 2 liter bag (1000 is less than the minimum 1200mL)

Multiple Choice

Which size reservoir bag will you pick for a 80 pound patient?

• 1/2 L

• 1 L

• 2 L

• 3 L

Open Ended

How do we prevent atalectasis during general anesthesi?

Air Intake Valve

Negative Pressure Relief Valve​

​Some machines have this across from the pop-off valve.

​

​

​If the reservoir bag collapses, it allows the animal to fill their lungs with room air.

​

​Non-rebreathing system (NRB)

​

Multiple Choice

CO2 absorbent crystals should be changed:

• After 360 minutes of use

• When they turn green

• After 24 hours of use

• Every time you use the machine

Multiple Select

This is a PASSIVE scavenging system. Which gases does it absorb?

• Carbon dioxide

• Isoflurane

• Nitrous Oxide

• Sevoflurane

Poll

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