Horowitz index adjusted to patients actual temperature in Arterial blood   50989-3

LOINC Code


LOINC code50989-3
nameHorowitz index adjusted to patients actual temperature in Arterial blood
descriptionA 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 (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.
statusACTIVE

Fully-Specified Name

componentHorowitz index^^adjusted to patient's actual temperature
propertyRatio
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemBldA+Inhl gas
    Inhl gas  =  Inhaled gas
    BldA  =  Blood arterial
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
method

Additional Names

short nameHorowitz index temp adj BldA+IhG-Rto

Basic Attributes

classCHEM
type1  Laboratory
order vs. observationBoth
formula (readable)arterial oxygen partial pressure [(PaO2) in mmHg]/ fraction of inspired oxygen
example UCUM unitsmm[Hg]
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitmm Hg

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

History/Usage

test rank3719 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name

Related Names

ABG
adj
ART
Art bld
Art blood
Arterial
Arterial blood
BldA+IhG
Blood arterial
Chemistry
Gases
IhG
Inhaled Gas
Inspired
PaO2/FiO2
Point in time
QNT
Quan
Quant
Quantitative
Random
Ratios
Rto
S prime
Temp
temp adj

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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