Chapter 4- Key Points from Textbook

Question 1

Anesthetic machines deliver precise amounts of _______, remove carbon dioxide and permit _______ of anesthetized patients

Answer 1

Anesthetic and carrier gas, manual ventilation

Question 2

An anesthetic machine can be used as a source of ______ in emergencies

Answer 2

oxygen

Question 3

_______ store carrier gases under high pressure. They come in different sizes, capacities, and the contents is identified by the colour.

Answer 3

Compressed Gas Cylinders

Question 4

The pressure-reducing valve decreases carrier gas pressure to a safe operating pressure of ____ to ____ PSI before gas enters the flowmeter

Answer 4

40-50

Question 5

The flow rate of each carrier gas is set by the ________ which is expressed in _______

Answer 5

flowmeter, L/min

Question 6

Liquid anesthetic is vaporized and added to the carrier gas in the ________

Answer 6

vaporizer

Question 7

The combination of anesthetic vapor, oxygen and nitrous oxide (if present) is called _______

Answer 7

fresh gas

Question 8

Vaporizers may be ______ or _______, based on their construction

Answer 8

precision, non-precision

Question 9

Precision vaporizers are found _____ the anesthetic circuit whereas non-precision vaporizers are found _____ the anesthetic circuit (inside or outside)

Answer 9

outside, inside

Question 10

The reservoir bag can be used to monitor the animal’s ventilation and to deliver oxygen to the patient by a process called _______

Answer 10

bagging

Question 11

______ and _____ valves permit only one-way flow of gas through the breathing circuit and prevent rebreathing of CO2

Answer 11

Inhalation and Exhalation Unidirectional

Question 12

Waste gas exits the machine at the _____ and is removed by the scavenging system

Answer 12

Pop-Off Valve

Question 13

The Soda Lime granules must be replaced when saturated or every __ to ___ hours to prevent rebreathing of CO2

Answer 13

6-8

Question 14

The ________ measures the pressure of gasses within the circuit and the patients lungs and must be monitored carefully during anesthesia

Answer 14

Pressure Manometer

Question 15

When using a rebreathing system, we use high flow rates during induction, recovery and changing of anesthetic depth, but during maintenance low flow rates are used. In a non-rebreathing system, _____ flow rates are used at all times (high or low)

Answer 15

high