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21 Cards in this Set
- Front
- Back
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What is the function of any Patient Breathing System (PBS) and what are the types?
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the function is to deliver O2, +/- anesthetic drug and to elminate CO2
two types -rebreathing -nonrebreathing |
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What are consequences of leaks in the breathing system?
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-not enough anesthetic
-not enough O2 -polluting the environment |
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What is the oxygen flush valve used for?
What does it bypass? What is the effect? |
-Delivers O2 to the Patient Breathing System
-Bypasses the vaporizor -Effects: Dilute the anesthetic |
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What does the fresh gas inlet supply?
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gases that have not be re-breathed and where the O2 and the anesthetic originates
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What is the purpose of the pop off ALP valve?
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Limits the pressure build during manual or spontaneous ventilation
KEEP THIS OPEN!!!! unless needed for manual, controlled or assisted ventilation |
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What does the breathing system pressure gauge measure?
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the pressure withing the patient breathing system
this should always read ZERO |
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What is used to absorb CO2 and in what system?
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Soda lime in a rebreathing system
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What are the signs in the patient that the CO2 absorber may be exhausted?
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-increased end tidal CO@ (should be 35-45mm/Hg)
-increased ventilation -rebreathing -respiratory acidosis -increased HR and BP -read mucous membranes |
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What is tidal volume?
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the volume of on inspiration and one expiration
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How do you calculate tidal volume?
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10-20ml/kg body weight
reservoir bag should be ~6x the tidal volume |
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T/F
The reservoir bah should always be empty. |
false
should be full |
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What are the uses of the reservoir bag?
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-watch the respiration of the patient
-Intermittent positive pressure ventilation (IPPV) -inspiratory reservoir |
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What are the two non rebreathing systems used at Ross University?
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Mapleson D and F
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What non rebreathing systems at Ross has an APL valve?
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Mapleson D
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What do we used the non rebreathing system for?
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patients under 10 kg due to its low resistance and high flow
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What ppm should the exposure to halogenated anesthetics be kept to?
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2ppm
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What machine collects excess gas from the machine?
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Scavenging
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What are the passive scavenging systems?
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-floor drop
-charcoal absorption -window or outside wall -vacuum collection |
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When is the charcoal absorber replaced?
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When it weighs more than 50g then it did after 8-12 hours of use
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What are the sources of anesthetic pollution in addition to used gas?
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-gas sampling monitors
-filling the vaporizors -recovery rooms (exhaling patients) -induction chambers of face masks |
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What should be turned off before filling a vaporizer with anesthetic?
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vapor dial
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