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21 Cards in this Set
- Front
- Back
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machine purposes
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deliver O2 at constant rate
vaporize / deliver anesthetic provide for assisted ventilation |
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compressed gas source
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oxygen (220psi)
nitrous oxide (760psi) |
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pressure regulator
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attached to gas source
reduces pressure to 50-60psi |
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pressure gauge
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tells how much gas is left in the tank
change O2 when less than 200L change NO2 when 75% gone |
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flowmeter
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controls flow of gas going to the patient
reduces pressure to 15psi max - 10L/min min - 500ml/min |
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flowmeter rebreathing rate
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15ml/kg/min
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flowmeter nonrebreathing rate
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200ml/kg/min
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oxygen flush valve
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near flowmeter, bypasses the vaporizer to deliver fresh oxygen to patient
rate 50-60L/min NEVER PUSH WHEN ANIMAL IS HOOKED UP AND POP OFF VALVE IS CLOSED |
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vaporizer
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delivers a controlled amount of anesthetic to patient
takes a liquid, vaporizes it, and delivers to patient |
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precision vaporizer
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controls vapor concentration regardless of environmental conditions
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nonprecision vaporizers
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vapor concentration is effected by environmental conditions, decide settings based on animal's response
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unidirectional dome valves
"flutter valves" |
one for inhalation, one for exhalation
keep flow circular and air from going in the wrong direction |
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breathing hoses
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take oxygen and anesthetic to and away from the patient
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reservoir bags
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stores gas, can be used to perform manual ventilation, and allows for visualizing respiration
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reservoir bag size
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60ml/kg
OR 5 x TV = bag size in ml (TV = 10ml/kg body weight) |
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pop-off / pressure release valve
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allows gas to leave / enter the scavenger circuit
closed when ventilating the patient manually |
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pressure manometer
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measures the amount of pressure within the system
dogs - should not exceed 20 cmH20 cats - should not exceed 15 cmH20 |
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scavenger system
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filters gas so that no anesthetics leak into the environment
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carbon dioxide absorber
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absorbs CO2 so fresh oxygen can enter the system
filled with barium hydroxide lime need to be changed when the crystals change from white to blue |
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out of circle breathing system
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old oxygen does not pick up new anesthetic
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in circle breathing system
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non precision vaporizer; new anesthetic continually added to old oxygen, levels can increase over time
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