During anesthesia, what are the recommended oxygen flow rates for a circuit with and without rebreathing?
a. For a circuit with rebreathing, oxygen flow rates of 3 L/min during the transition phase and 1-1.5 L/min during maintenance are recommended. For a circuit without rebreathing, oxygen flow rates of around 3 L/min are recommended during the entire anesthesia.
b. For a circuit with rebreathing, oxygen flow rates of around 3 L/min are recommended during the entire anesthesia. For a circuit without rebreathing, oxygen flow rates of 1-1.5 L/min during the transition phase and maintenance are recommended.
c. For a circuit with rebreathing, oxygen flow rates of 1-1.5 L/min during the transition phase and maintenance are recommended. For a circuit without rebreathing, oxygen flow rates of around 3 L/min are recommended during the entire anesthesia.