Non Rebreathing Circuit Anaesthesia

20 40 ml kg min of oxygen flow rate suitable for most clinical circumstances.

Non rebreathing circuit anaesthesia.

All non rebreathing nrb circuits lack unidirectional valves and soda lime carbon dioxide absorption. Non rebreathing circuits are designed to deliver oxygen and anesthetic gases with less resistance to breathing in small patients under 10 lbs 7 kg. Thus the amount of rebreathing is highly dependent on fresh gas flow fgf in all. 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.

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. Photograph of the mapleson d. Non rebreathing mapleson breathing circuits. Click on the thumbnail or on the underlined text to see the larger version 136 kb.

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. Non rebreathing circuit nrb bain vs rebreathing circle systems. Less control of anesthetic depth than non rebreathing circuit. 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. 10 20 ml kg min of oxygen flow rate. Greater than 40 ml kg min of oxygen flow rate.