what is an open system
No mask on the face no dead space Anesthetic by insufflation room air inhaled and anesthetic diluted NO rebreathing and NO reservoir bag NO valves Not used much today
What is a semi-open system?
Mask on face breath spot inhalation gasses and room air CO2 accumulates under mask Reservoir bag No rebreathing Room pollution High gas flows
What is a semi closed system
mask on face No room air inspired Expired gas exits through scavenging system Very common Unidirectional valves Conserves moister and heat Pop off valves Currogated tubes
What is a closed system
Mask on agents contained in the system and not vented maintains humidaifaction Rebreathing gases Unidirectional valves
what type of maples can be used to ventilate an panic pt?
All 6
A, B, C , D , E, F (and brain modified D)