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Oxygenation Index

The oxygenation index is a calculation used in intensive care medicine to measure the fraction of inspired oxygen and its usage within the body.

The oxygenation index equals the mean airway pressure times the inspired oxygen concentration divided by the partial pressure of arterial oxygen.

Formula

QuantityVariable[Row[{Subscript["O", "2"], "I"}, "​"], "Unitless"] == (QuantityVariable["MAP", "Pressure"]*QuantityVariable[Subscript["FiO", "2"], "Unitless"])/QuantityVariable[Subscript["PaO", "2"], "Pressure"]

symbol description physical quantity
StringJoin[Row[{{"O", "", "2", ""}, "I"}, "​"]] oxygen index "Unitless"
MAP mean airway pressure "Pressure"
FiO2 inspired oxygen concentration "Unitless"
PaO2 partial pressure of arterial oxygen "Pressure"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Oxygenation Index"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Oxygenation Index"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ResourceObject["Oxygenation Index"], {QuantityVariable[ \!\(\*SubscriptBox[\("FiO"\), \("2"\)]\),"Unitless"] -> Quantity[20, "Percent"], QuantityVariable[ \!\(\*SubscriptBox[\("PaO"\), \("2"\)]\),"Pressure"] -> Quantity[90, "MillimetersOfMercury"]}]
Out[3]=

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