Old Machine - 1993 Recommendations Flashcards
What is the first thing done when doing a machine check?
Verify Backup Ventilation
Equipment is Available &
Functioning
After checking for emergency ventilation equipment, what do you check on the machine first?
Check Oxygen Cylinder
Supply
You are checking the oxygen cylinder on the machine - what amount is necessary?
Half full or about 1000 PSI
You have verified cylinder supplies. What do you check next?
Check central pipeline supplies - hoses should be connected with gauges reading 50 PSI
You have completed your checks of the high and intermediate pressure systems - what is your next step?
Check initial status of low pressure system
- close flow control valves
- turn off vaporizers
- check fill level and tighten vaporizer filler caps
You have done your initial check of the low pressure system - describe how you perform a leak check of the low pressure system
- Master switch, flow control valves off
- attach a suction bulb to common gas outlet
- squeeze bulb until fully collapsed
- verify the bulb stays fully collapsed for at least 10 seconds
- open one vaporizer at at ime and repeat the bulb test
- remove bulb and reconnect fresh gas hose
What do you do following your low pressure leak test?
Turn on the machine master switch and all other necessary electrical equipment
You have turned on your master switch and all other necessary electrical equipment - Whats next?
hurry, Dr. Herring is staring at you like you are an ignorant slut
Test flowmeters
- ensure full range and smooth operation
- attempt to create hypoxic mixture
Your low pressure system is good to go - what do you check next?
Scavenging system
Describe the check of the scavenging system
- Ensure connections from APL valve to scavenging system and vent relief valve to scavenging system
- Adjust waste gas suction
- Fully open APL valve and oclude Y-piece
- Allow scavenger reservoir bag to collapse and verify absorber pressure is about 0
- Activate O2 flush and allow scavenger reservoir bag to fully distend - ensure absorber pressure is less than 10
Which system is checked following the scavenging system?
Breathing system/circuit
How do you calibrate the O2 monitor?
- Ensure monitor reads 21% in room air
- Verify low O2 alarm is enabled and functioning
- Reinstall sensor into the circuit and flush system with O2
- Verify that monitor now reads > 90% oxygen
You have calibrated your O2 monitor - describe the inital status check of the breathing system
- set selector switch to bag mode
- check breathing circuit is complete, undamaged, and unobstructed
- verify CO2 absorber is adequate
- Install breathing circuit accessory equipment: humidifier, PEEP valve, etc.
Describe the leak check of the breathing system
- Set gas flow to 0 or minimum
- close APL valve and occlude Y-piece
- Pressurize breathing system to about 30 cmH2O with O2 flush
- Ensure that pressure remains fixed for at least 10 seconds
- open APL valve and ensure that pressure decreases
After performing your breathing system leak test, you are ready to test the ventilation systems - pls describe boi
- Place breathing bag on Y-piece
- Set vent parameters and switch to automatic ventilation
- Fill bellows and breathing bag with O2 flush and turn vent on
- O2 on minimum, other gases off
- Ensure that tidal volume is delivered and bellows fill on expiration
- O2 up to 5 L/min and verify ventilator bellows and “lungs” fill and empty without sustained pressure
- Check unidirectional valves
- Turn off vent and switch to manual
- Use the bag to ensure inflation and deflation of artificial lungs
- Remove second bag
