What type of endotracheal tube combines strength with pliability and is resistant to collapse and less irritating to tissues than other types of tubes?
Red rubber
Polyvinyl chloride
Silicone
Anode
What purpose does the Murphy’s eye serve on an endotracheal tube?
Used to monitor cuff inflation
Minimizes the risk of patient asphyxiation
Used to inflate the cuff
Prevents dead space
If an endotracheal tube is longer than the thoracic inlet, there is:
an increased risk of mechanical dead space.
a risk of fire due to the higher oxygen content.
a risk of only one lung being infused with oxygen and anesthetic gas.
a risk of increased amount of mucus in the tube.
Which device is used to maintain an open airway in an anesthetized patient by connecting with the opening of the epiglottis without invading the tracheal lumen?
Laryngoscope
Supraglottic airway device (SAD)
Anesthetic mask
Induction chamber
The scavenger system of an anesthetic machine removes which gas from the patient?
CO2
O2
N2O
N
Which portion of the anesthetic machine converts the liquid inhalant anesthetic to a usable form for the patient?
Compressed gas supply
Breathing circuit
Scavenging system
Vaporizer
The compressed air service delivers three green cylinders to your practice. What type of gas is in these tanks?
Medical air
An H-tank of oxygen has a psi measurement of 1000. How long can this tank continue to be used at an oxygen flow rate of 1 L/min?
25 hr
30 hr
50 hr
110 hr
At what pressure level should the tank be replaced?
1000 psi
700 psi
500 psi
200 psi
Which of the following devices ensures that the pressure of the gas is at a constant safe operating pressure regardless of the pressure in the tank?
Pressure-reducing valve
Tank pressure gauge
Line pressure gauge
Which of the following devices reduces the pressure of the gas from about 50 to 15 psi, the optimal pressure for entry into the breathing circuit?
Flowmeter
How does a flowmeter set below 100 mL/kg/min affect the concentration of anesthetic in the circuit?
Increases the actual concentration of anesthetic
Does not affect the concentration of anesthetic
Lowers the actual concentration of anesthetic
The flowmeter cannot be set lower than 100 mL/kg/min
A normal concentration of isoflurane to maintain a premedicated 20-kg dog would be approximately:
5%
0.5%
6%
1.5%
What should be done if a bottle of inhalant anesthetic is accidentally dropped and breaks?
Mop up the liquid with a wet mop.
Mop up the liquid with paper towels.
Evacuate the room immediately and allow the room to air out until the liquid is completely evaporated.
There is no reason to do anything as the liquid will evaporate.
You have been asked to manage general anesthesia on a horse. What type of system would be most appropriate?
Closed rebreathing system
Semiclosed rebreathing system
Rebreathing system
Partial rebreathing system
Failure to adjust which of the following devices results in a buildup of excess pressure or volume of gases within the circuit and may damage the animal’s lungs?
Unidirectional valve
Pop-off valve
Pressure manometer
Air intake valve
The ideal volume of a reservoir bag for a 44-pound dog should be:
500 mL.
1 L.
3 L.
5 L.
During any procedure, the reservoir bag should be approximately how full at peak expiration?
10%
20%
50%
75%
Fresh granules for the carbon dioxide absorber canister will:
turn purple.
crumble with finger pressure.
be hard and brittle.
be off-white in color.
How often should the carbon dioxide granules be changed even without color change?
3 to 4 hr of use
6 to 8 hr of use
10 to 12 hr of use
Only need to be changed if color changes
Which of the following devices should an anesthetist monitor when squeezing the reservoir bag to determine the pressure being exerted on the animal’s lungs?
The maximum safe pressure manometer reading for a 15-kg dog would be:
2 cm H2O.
10 cm H2O.
20 cm H2O.
40 cm H2O.
The patient is a 3-kg kitten. What type of system should be used on the anesthetic machine?
Non-rebreathing system
When a 5-kg animal is placed on a Bain Coaxial Circuit, some rebreathing of waste gas will occur unless the oxygen flow is:
0.5 to 1 times the RVM.
2 to 3 times the RVM.
4 to 5 times the RVM.
6 to 7 times the RVM.
An anesthetist needs to rapidly increase the depth of anesthesia on a patient. Which is the best method of doing so?
Decrease the oxygen flow using the rebreathing system.
Increase the vaporizer settings using the rebreathing system.
Use a non-rebreathing circuit.
Bag the animal with the precision vaporizer set on 1%.
The VT in most anesthetized patients is:
3 mL/kg/min.
5 mL/kg/min.
8 mL/kg/min.
10 mL/kg/min.
What would be the recommended oxygen flow rate for mask induction of a 25-pound dog?
0.5 mL/kg/min
1 mL/kg/min
2.5 mL/kg/min
4 mL/kg/min
All parts of the anesthesia machine need to be handled carefully, but which part should the technician take extra care to not overtighten?
The wing nut holding the E-tank in place
Oxygen flush valve
Testing the integrity of which part of the anesthetic machine can be achieved by placing the end of a tube in your mouth with a surgical mask in place?
Disinfecting endotracheal tubes with which of the following will not kill all microorganisms and spores?
Chlorhexidine gluconate
Ethylene oxide
Autoclaving
Gas sterilization
