Chpt. 4 - Review Questions Flashcards Preview

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Flashcards in Chpt. 4 - Review Questions Deck (20):
1

When the oxygen tank is half full, the tank pressure gauge will read approximately?

1100 psi

2

Nitrous oxide is present in the tank as a?

Liquid and a gas

3

The amount of oxygen an animal is receiving is indicated by the?

Flow meter

4

Flow meters that have a ball for reading the gauge should be read from the ... of the ball.

middle

5

The most commonly recommended ratio for nitrous oxide and oxygen flow rate is?

33% oxygen and 67% nitrous oxide

6

The minimum size for the reservoir bag can be calculated as?

60mL/kg

7

The flutter valves on an anesthetic machine help?

Control the direction of movement of gases

8

The pop-off valve is part of the anesthetic machine and helps?

Prevent excess gas pressure from building up within the breathing circuit

9

In small animal anesthesia, when the patient is bagged, the pressure manometer reading should not exceed?

20 cm H2O

10

True or false:
Rebreathing systems, when used with standard small animal corrugated breathing tubes, are best reserved for animals weighing more than 7 kg.

True

11

Rebreathing is determined primarily by the?

Fresh gas flow

12

Non-rebreathing systems should have maintenance flow rates that are?

Very high (at least 200 mL/kg/min)

13

The negative pressure relief valve is particularly important when?

There is a failure of oxygen flow through the system.

14

The tidal volume of an anesthetized animal is considered to be ... mL/kg of body weight.

10

15

A scavenging system is generally attached to?

The pop-off valve

16

A reservoir bag that is not moving well may indicate that?

- the ET tube is not in the trachea
- the animal has a decreased tidal volume
- there is a leak around the ET tube

17

The anesthetist will know when the granules in the carbon dioxide absorber have been depleted because the?

- granules will be brittle
- granules may change color
- granules may be hard

18

An increase in the depth of anesthesia can be achieved quickly by?

- having high oxygen flow rates
- having high vaporizer settings

19

The concentration of anesthetic delivered from a nonprecision vaporizer may depend on the?

- temperature of the liquid anesthetic
- flow of the carrier gas through the vaporizer
- back pressure
- type of anesthetic in the vaporizer

20

When an anesthetic machine is operating correctly, the pressures in the machine are always?

- 40 to 50 psi between the pressure-reducing valve and the flow meters
- 15 psi between the flow meters and the breathing circuit
- 15 psi entering a VOC vaporizer