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20 Cards in this Set

  • Front
  • Back
machine check
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
1)emergency ventilation equipment
1)verify backup vent. equipment is available and functioning
ambu bag
2)high-pressure system
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
3) low-pressure system
4) check initial status of low-pressure system
- close flow control valves & turn vaporizers off
- check fill level & tighten vapolizer's filler caps
3) low-pressure system
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
3) low-pressure system
6) turn on machine master switch & all other necessary electrical equipment
3) low-pressure system
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
4) scavenging system
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)
4) scaenging system
- with minimum O2 flow, allow scavenger reservoir bag to collapse completely and verify that absorber pressure gauge reads about 0
4) scavnging system
- with the O2 flush activated, allow scavenger reservoir bag to distend fully, and then verify that absorber pressure gauge reads < 10 cm H2O
5) breathing system
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 %
5) breathing system
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)
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
6) manual and automatic vent. systems
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
6) manual and automatic vent. systems
- 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
6) manual and automatic vent. systems
- 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
6) manual and automatic vent. systems
- check for proper action of unidirectional valves
- exercise breathing circuit accessories to ensure proper function
6) manual and automatic vent. systems
- 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
7) monitors
13) check, calibrate and/or set alarm limits of all monitors:
pulse ox
O2 analyzer
resp. volume monitor (spirometer)
pressure monitor with high and low airway-pressure alarms
8) final position
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