50983-6LOINC 2.82
Horowitz index in Capillary blood
Horowitz index BldC+IhG-Rto
Definition
- A ratio with numerator = capillary oxygen partial pressure (PaO2) in mmHg and denominator = fraction of inspired oxygen (FIO2) with no units. If the patient is breathing room air (20% O2) the fraction would be 0.20. 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.
Component
- Horowitz index
Specimen / system
- BldC+Inhl gas
Class
- CHEM
Property
- Ratio
Scale
- Qn
Related names
- BldC+IhG; Blood - capillary; Cap bld; Cap blood; Capillary bld; Capillary blood; Chemistry; Finger stick; Gases; IhG; Inhaled Gas; Inspired; PaO2/FiO2; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto
Index terms
- BldC+IhG
- Blood - capillary
- Cap bld
- Cap blood
- Capillary bld
- Capillary blood
- Chemistry
- Finger stick
- Gases
- IhG
- Inhaled Gas
- Inspired
- PaO2/FiO2
- Point in time
- QNT
- Quan
- Quant
- Quantitative
- Random
- Ratios
- Rto