Controlled FiO2 Therapy to Neonates by Oxygenhood in the Absence of Oxygen Analyzer

It is possible to predict the oxygen concentration inside the head box without the use of oxygen analyzer. Larger head box and higher lid position, results in lower oxygen concentration, at a given oxygen flow rate. Oxygen concentration achieved in babies is lesser than the concentration achieved in a dummy. Flow rates of less than four lpm in small and three lpm in medium and large sized head boxes are associated with CO2 retention. These results are not applicable to infants weighing less than 2 kg.