FiO2 Estimation Calculation

FiO2, in the field of medicine, is the percentage or fraction of inspired oxygen in a gas mixture. 20.9 percentage of oxygen in the normal natural air, which is equal to FiO2 of 0.209. FiO2 is the ventilator parameter which helps to measure the percentage of oxygen delivered to the patient. Simply input the child's weight (in kg), his or her respiratory rate, the current O2 flow rate and percent O2 at the blender and the FiO2 estimation calculator automatically displays the estimated FiO2.

Fraction of Inspired Oxygen Calculation

(L/min)
(%)
(%)

FiO2, in the field of medicine, is the percentage or fraction of inspired oxygen in a gas mixture. 20.9 percentage of oxygen in the normal natural air, which is equal to FiO2 of 0.209. FiO2 is the ventilator parameter which helps to measure the percentage of oxygen delivered to the patient. Simply input the child's weight (in kg), his or her respiratory rate, the current O2 flow rate and percent O2 at the blender and the FiO2 estimation calculator automatically displays the estimated FiO2.

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Standard Nasal Canula
ValueEstimated FiO2
0.522.5
124
1.525.5
227
2.528.5
330
3.531.5
433
4.534.5
536
5.537.5
639
High Flow Nasal Canula
ValueMean FiO2 achievedRange of FiO2 achieved
65435-89
85833-87
106640-88
126937-93
157539-98

Estimation of FiO2 is used to estimate percentage of oxygen participating in gas-exchange for medical patients who are feeling difficulty in breathing.

Note :This statistics calculator is presented for your own personal use and is to be used as a guide only. Medical and other decisions should NOT be based on the results of this calculator. Although this calculator has been tested, we cannot guarantee the accuracy of its calculations or results.


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