Anaesthetic Breathing Systems Flashcards

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9 cards   |   Total Attempts: 189
  

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Cards In This Set

Front Back
The two families of anaesthesia:
Family 1- Ayres T-piece and Bain
family 2- The Lacks
Family 1 - A & B
(Ayres t-piece and Bain)
Resevoir bag in expiratory tubing.
circuit factor: 2.5-3
Suitable for IPPV
Family 2- The Lacks
Resevoir bag on inspiratory tubing.
circuit factor: 1-1.5
NOT suitable for IPPV
Parallel lack.
Answer 4
Co-axial lack.
Answer 5
Ayres T-piece
Answer 6
Bain.
Answer 7
Calculating flow rates:
1] TIDAL VOLUME
2] WORKING OUT THE PATIENT MINUTE VOLUME
3] THE ACTUAL FLOW RATE
1]TIDAL VOL= <10KG 15ML/KG
>10KG 10ML/KG
2] MINUTE VOL= TIDAL VOL x RESPIRATORY RATE
>>>>>>>
3] MINUTE VOL x CIRCUIT FACTOR= FLOW RATE
WORKED EXAMPLE
25KG LABRADOR WITH A RESP RATE OF 20.....
TIDAL VOLUME= 10ML/KG= 10x25= 250ml
MINUTE VOLUME (tidalxresp) =250x10=2500ml/min
FRESH GAS (min x circuit fact)=2500x1=2500mls/min
2500x1.5=3750mls/min
FLOW NEEDED= 2500-3750 mls/min