Non Rebreathing Circuit Anaesthesia

Less control of anesthetic depth than non rebreathing circuit.

Non rebreathing circuit anaesthesia.

In this circuit oxygen flows through a flow meter and into the vaporizer. 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. Click on the thumbnail or on the underlined text to see the larger version 136 kb. Photograph of the mapleson d.

At this point gases exiting the vaporizer go directly to a hose for delivery to the patient with no inhalation flutter valve. 20 40 ml kg min of oxygen flow rate suitable for most clinical circumstances. Veterinary anesthesia circuits explained. Non rebreathing mapleson breathing circuits.

Veterinary anesthesia circuits explained non rebreathing circuit nrb bain the non rebreathing circuit is a physically simpler system. 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. 10 20 ml kg min of oxygen flow rate. Non rebreathing circuit nrb bain vs rebreathing circle systems.

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 circuits are designed to deliver oxygen and anesthetic gases with less resistance to breathing in small patients under 10 lbs 7 kg. All non rebreathing nrb circuits lack unidirectional valves and soda lime carbon dioxide absorption.