Horowitz index adjusted to patients actual temperature in Blood   50987-7

LOINC Code


LOINC code50987-7
nameHorowitz index adjusted to patients actual temperature in Blood
descriptionA ratio with numerator = 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.
systemBld+Inhl gas
    Inhl gas  =  Inhaled gas
    Bld  =  Whole blood
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 Bld+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

first released
last updated2.70
last change typeMIN  - change to field other than name

Related Names

adj
Bld+IhG
Blood
Chemistry
Gases
IhG
Inhaled Gas
Inspired
PaO2/FiO2
Point in time
QNT
Quan
Quant
Quantitative
Random
Ratios
Rto
S prime
Temp
temp adj
WB
Whole blood

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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