Thyroxine (T4) free [Mass/volume] in Serum or Plasma   3024-7

LOINC Code


LOINC code3024-7
nameThyroxine (T4) free [Mass/volume] in Serum or Plasma
statusACTIVE

Fully-Specified Name

componentThyroxine.free
propertyMCnc  =  Mass Concentration
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.
systemSer/Plas
    Ser  =  Serum
    Plas  =  Plasma
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 nameT4 Free SerPl-mCnc

Basic Attributes

classCHEM
type1  Laboratory
order vs. observationBoth
example UCUM unitsng/dL
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 unitng/dL

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 Groups

LG12004-4Thyroxine.free|MCnc|Pt|ANYBldSerPl
LG49672-5Thyroxine.free|Pt|Ser/Plas

Member of these Panels

24348-5Free T4 and TSH panel - Serum or Plasma
90224-7Thyroxine and Thyroxine.free panel - Serum or Plasma

History/Usage

test rank134 of 2000 most commonly performed tests by labs in USA
order rank72 of 2000 most commonly ordered tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name

Related Names

Chemistry
Endocrine
Endocrinology
FR
FreeT4
FT4
Level
Levothyroxine
Levo-thyroxine
L-thyroxine
Mass concentration
Non-protein bound
Pl
Plasma
Plsm
Point in time
QNT
Quan
Quant
Quantitative
Random
SerP
SerPl
SerPlas
Serum
Serum or plasma
SR
T4
T-4
T4 Free
thyroid hormone
Thyrox
Thyroxin
Thyrx
Total T4
TT4
UniversalLabOrders

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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