Low Flow Oxygen Calculator
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Use this calculator to estimate the effective FiO2 that low flow oxygen delivers
Simply input the child's weight (in kg), his or her respiratory rate, the current O2 flow rate and percent O2 at the blender.
The algorithm uses a method validated by Finer et al, Pediatr Pulmonol 1996;21(1):48-51. Finer’s formula has been modified to allow for the use of an O2 blender. A tidal volume of 5.5mL/kg is assumed.