Levothyroxine absorption panel - Serum or Plasma   90795-6

LOINC Code


LOINC code90795-6
nameLevothyroxine absorption panel - Serum or Plasma
descriptionThis panel is used to report the results of levothyroxine absorption testing for patients who have persistent hypothyroidism despite being prescribed a seemingly appropriate dose of levothyroxine. The results help distinguish between malabsorption and medication noncompliance.
statusACTIVE

Fully-Specified Name

componentLevothyroxine absorption panel
property-
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 nameLevothyroxine absorption pnl SerPl

Basic Attributes

classPANEL.CHAL
type1  Laboratory
order vs. observationOrder

Panel Components

27891-1Thyroxine (T4) [Mass/volume] in Serum or Plasma --baseline
14999-7Thyrotropin [Units/volume] in Serum or Plasma --baseline
90796-4Thyroxine (T4) [Mass/volume] in Serum or Plasma --1 hours post dose levothyroxine
90797-2Thyroxine (T4) [Mass/volume] in Serum or Plasma --2 hours post dose levothyroxine
90798-0Thyroxine (T4) [Mass/volume] in Serum or Plasma --3 hours post dose levothyroxine
90799-8Thyroxine (T4) [Mass/volume] in Serum or Plasma --4 hours post dose levothyroxine
90800-4Thyroxine (T4) [Mass/volume] in Serum or Plasma --6 hours post dose levothyroxine
90801-2Thyrotropin [Units/volume] in Serum or Plasma --6 hours post dose levothyroxine
39156-5Body mass index (BMI) [Ratio]
90802-0Medication volume of distribution Calculated
90803-8Post-challenge peak - baseline concentration increment [Mass concentration difference] in Serum or Plasma by calculation
18615-5Medication administered Dose
90804-6Levothyroxine absorption in Serum or Plasma by calculation

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 updated2.65
last change typeADD  - added

Related Names

Absorp
c99
CHEMISTRY.CHALLENGE TESTING
Levothyroxine absorption pnl
L-thyroxine
Pan
PANEL.CHALLENGE
Panl
Pl
Plasma
Plsm
Pnl
Point in time
QNT
Quan
Quant
Quantitative
Random
SerP
SerPl
SerPlas
Serum
Serum or plasma
SR

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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