Oxygen Delivery

Device Selection

Device	Flow Rate	FiO2
Nasal prongs	2-4 L/min	24-30%
Hudson mask	6-10 L/min	35-60%
Non-rebreather	10-15 L/min	60-80%
Venturi	Per colour	Fixed %

<Diagram src="/figures/respiratory/oxygen-delivery-devices.svg" alt="Oxygen delivery devices" caption="Comparison of oxygen delivery devices and flow rates" />

NOTE

CO2 retainers: target SpO2 88-92%, use Venturi

Prep

Check flow meter reading (equator of ball)
Check tubing connections

Execute

Select appropriate device
Set flow rate
Apply to patient
Check reservoir bag inflates (NRB)

CAUTION

Inhalo cylinder: crack grey seal to turn on master valve

Finish

Document FiO2 and SpO2
Reassess in 15-30 min

Checklist Complete