50990-1

LOINC 2.82

Horowitz index adjusted to patients actual temperature in Mixed venous blood

Horowitz index temp adj BldMV+IhG-Rto

Definition

  • A ratio with numerator = mixed venous 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^^adjusted to patient's actual temperature

Specimen / system

  • BldMV+Inhl gas

Class

  • CHEM

Property

  • Ratio

Scale

  • Qn

Related names

  • adj; Bld mixed venous; BldMV+IhG; Blood - Mixed Venous; Chemistry; Gases; IhG; Inhaled Gas; Inspired; PaO2/FiO2; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; S prime; Temp; temp adj

Index terms

  • adj
  • Bld mixed venous
  • BldMV+IhG
  • Blood - Mixed Venous
  • Chemistry
  • Gases
  • Horowitz index^^adjusted to patient's actual temperature
  • IhG
  • Inhaled Gas
  • Inspired
  • PaO2/FiO2
  • Point in time
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • Ratios
  • Rto
  • S prime
  • Temp
  • temp adj