LOINC display name : Horowitz index (BldA Inhl gas) [Ratio];
LOINC long common name : Horowitz index in Arterial blood;
LOINC short name : Horowitz index BldA IhG-Rto;
LOINC description : A ratio with numerator arterial oxygen partial pressure (PaO2) in mmHg and denominator
fraction of inspired oxygen (FIO2) with no units. If the patient is breathing room
air (21% O2) the fraction would be 0.21. It is reported in mmHg. It is a well established
marker for lung function during mechanical ventilation and used in many acuity scores
like SAPS II, SAPS III, and SOFA.;