Non Rebreathing Circuit Anaesthesia

The distinguishing feature of non rebreathing circuits is that elimination of co 2 is accomplished by removing all expired gases from the system and venting them to the atmosphere.

Non rebreathing circuit anaesthesia.

All non rebreathing nrb circuits lack unidirectional valves and soda lime carbon dioxide absorption. These circuits do not use a soda lime canister but instead use specially designed circuits and a higher fresh gas flow to remove carbon dioxide. Non rebreathing mapleson breathing circuits. 10 20 ml kg min of oxygen flow rate.

Non rebreathing circuits are designed to deliver oxygen and anesthetic gases with less resistance to breathing in small patients under 10 lbs 7 kg. 20 40 ml kg min of oxygen flow rate suitable for most clinical circumstances. Veterinary anesthesia circuits explained non rebreathing circuit nrb bain the non rebreathing circuit is a physically simpler system. This is normally achieved by using the fresh gas flow from the anaesthetic machine to direct the expired gases out of the circuit via a valve or other arrangement.

Greater than 40 ml kg min of oxygen flow rate. Photograph of the mapleson d. Veterinary anesthesia circuits explained. At this point gases exiting the vaporizer go directly to a hose for delivery to the patient with no inhalation flutter valve.

Non rebreathing circuit nrb bain vs rebreathing circle systems. Thus the amount of rebreathing is highly dependent on fresh gas flow fgf in all. This brief summary of the two most popular anesthesia circuits currently in use is intended as an easy reference to simplify and explain the strengths and advantages of both systems.