# FiO2 Estimation Calculation

FiO_{2}, 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 FiO_{2} of 0.209. FiO_{2} 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 O_{2} flow rate and percent O_{2} at the blender and the FiO2 estimation calculator automatically displays the estimated FiO_{2}.

## Fraction of Inspired Oxygen Calculation

FiO_{2}, 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 FiO_{2} of 0.209. FiO_{2} 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 O_{2} flow rate and percent O_{2} at the blender and the FiO2 estimation calculator automatically displays the estimated FiO_{2}.

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Standard Nasal Canula |
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Value | Estimated FiO_{2} |

0.5 | 22.5 |

1 | 24 |

1.5 | 25.5 |

2 | 27 |

2.5 | 28.5 |

3 | 30 |

3.5 | 31.5 |

4 | 33 |

4.5 | 34.5 |

5 | 36 |

5.5 | 37.5 |

6 | 39 |

High Flow Nasal Canula |
---|

Value | Mean FiO_{2} achieved | Range of FiO_{2} achieved |

6 | 54 | 35-89 |

8 | 58 | 33-87 |

10 | 66 | 40-88 |

12 | 69 | 37-93 |

15 | 75 | 39-98 |

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.