Calc Function

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    Horowitz Index for Lung Function (P/F Ratio)

    Assesses lung function, particularly in intubated patients.

    INSTRUCTIONS

    The P/F ratio should be used in patients where arterial oxygen partial pressure (PaO2) and the fractional inspired oxygen (FiO2) can be measured accurately. Any estimated values should be interpreted with caution.

    mm Hg
    %

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