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20 Cards in this Set
- Front
- Back
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machine check
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1) emergency vent. equipment
2) high-pressure system 3) low-pressure system 4) scavenging system 5) breathing system 6) manual & automatic vent. systems 7) monitors 8) final position |
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1)emergency ventilation equipment
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1)verify backup vent. equipment is available and functioning
ambu bag |
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2)high-pressure system
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2) check O2 cylinder supply
- open O2 cylinder & verify at least half full (about 1000 psig) - close cylinder 3) check central pipeline supplies - check that hoses are connected - pipeline gauses read about 50 psig |
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3) low-pressure system
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4) check initial status of low-pressure system
- close flow control valves & turn vaporizers off - check fill level & tighten vapolizer's filler caps |
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3) low-pressure system
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5) perform leak check of machine low-pressure system
- verify machine master switch & flow control valves are off - attach suction bulb to common (fresh) gas outlet - squeeze bulb repeatedly until fully collapsed - verify bulb stays fully collapsed for at least 10 sec. - open one vaporizer at a time & repeat above steps - remove suction bulb, & reconnect fresh gas hose |
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3) low-pressure system
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6) turn on machine master switch & all other necessary electrical equipment
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3) low-pressure system
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7) test flowmeters
- adjust flow of all gases through their full range, checking for smooth operation of floats and undamaged flowtubes - attempt to create a hypoxic O2/N2O mixture and verify correct changes in flow and/or alarm |
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4) scavenging system
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8) adjust and check scavenging system
- ensure proper connections bet. the scavenging system and both APL valve adn vent. relief valve - adjust waste-gas vacuum (if possible) |
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4) scaenging system
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- with minimum O2 flow, allow scavenger reservoir bag to collapse completely and verify that absorber pressure gauge reads about 0
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4) scavnging system
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- with the O2 flush activated, allow scavenger reservoir bag to distend fully, and then verify that absorber pressure gauge reads < 10 cm H2O
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5) breathing system
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9) calibrate O2 monitor
- ensure monitor reads 21 % in room air - verify low-O2 alarm - reinstall sensor in circuit and flush breathing system with O2 - verify that monitor now reads > 90 % |
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5) breathing system
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10) chcek initial status breathing system
- set selector switch to BAG mode - check that breathing circuit is complete, undamaged, and unobstructed - verify that CO2 absorbent is adequate install breathing-circuit accessory equipment (humidifier, PEEP valve) |
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5) breathing system
11) perfrom leak check of the breating system |
- set all gas flow to 0
- close APL valve and occlude Y-piece - pressure breathing system to about 30 cm H2O with O2 flush - ensure that pressure remains fixed for at least 10 sec. - open APL valve and ensure that pressure decreases |
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6) manual and automatic vent. systems
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12) test vent. systems and uniderectional valves
- place a 2nd breathing bag on Y-piece - set vent. parameters for next pt. - switch to ventilator mode turn vent. on and fill bellows and breathing bag with O2 flush |
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6) manual and automatic vent. systems
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- set O2 flow to minimun, other gas flows to 0
- verify that during inspiration bellows delivers appropriate TV and that during expiration bellow fills completely |
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6) manual and automatic vent. systems
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- set fresh gas flow to about 5L/min.
- verify that the vent. bellows and simulated lungs fill and empty appropriately w/o sustained pressure at end expiration |
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6) manual and automatic vent. systems
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- check for proper action of unidirectional valves
- exercise breathing circuit accessories to ensure proper function |
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6) manual and automatic vent. systems
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- turn vent. OFF and switch to manual vent. (bag/APL) mode
- ventilate manually and assure inflation and deflation of artificial lungs and appropriate feel of system resistance and compliance - remove 2nd breathing bag from Y-piece |
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7) monitors
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13) check, calibrate and/or set alarm limits of all monitors:
capnograph pulse ox O2 analyzer resp. volume monitor (spirometer) pressure monitor with high and low airway-pressure alarms |
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8) final position
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14) check final status of machine
- vaporizers off - APL valve open - selector switch to bag mode - all flowmeters to 0 (or minimum) - pt suction level adequate - breathing system ready to use |
