LOINC Home

{component}   LP432695-7

Clinical   LP7787-7

Respiratory measures and Ventilator management   LP7840-4

Gas flow   LP72623-9

FEF 25%   LP145613-8

FEF 25% | Respiratory system airway | Respiratory measures and Ventilator management   LP408957-1

Gas flow FEV 25%   65821-1

LOINC Code


LOINC code65821-1
nameGas flow FEV 25%
statusTRIAL

Fully-Specified Name

componentGas flow at 25% of forced expiration
propertyVRat  =  Volume Rate
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.
systemRespiratory system.airway
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 nameGas flow FEV 25%

Basic Attributes

classPULM
type2  Clinical
example UCUM unitsL/s
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)

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.

Member of these Panels

62639-0PhenX - respiratory - spirometry protocol 091601

History/Usage

first released
last updated2.65
last change typeMIN  - change to field other than name
change reasonUpdated the PhenX ID from "PhenX." to "PX" in Survey Question Source field to align with the variable identifier used in the PhenX Toolkit.

Related Names

Breathing
Dynamic
Exp
FEF 25%
Flow
Gases
Lung
Lungs
Point in time
PULMONARY
 Pulmonology
QNT
Quan
Quant
Quantitative
Random
Respiratory
RS
Volume rate
vRate

Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, 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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