Tryptophan-related indole profiling panel - Platelet rich plasma   74545-5

LOINC Code


LOINC code74545-5
nameTryptophan-related indole profiling panel - Platelet rich plasma
descriptionProfiling of the plasma indoles tryptophan, 5-hydroxytryptophan (5-HTP), 5-Hydroxytryptamine (serotonin), and 5-hydroxyindoleacetic acid (5-HIAA) is useful in the diagnosis of carcinoid tumors with symptoms suggestive of carcinoid syndrome. Platelet serotonin is the most sensitive indole marker for the diagnosis and follow-up of carcinoids. In contrast to urinary 5-HIAA, platelet serotonin is not influenced by dietary intake of foods containing serotonin. [PMID:11568091]
statusACTIVE

Fully-Specified Name

componentTryptophan-related indole profiling 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.
systemPRP  =  Platelet rich plasma
scale-
method

Additional Names

short nameTryp-related indole profile pnl PRP

Basic Attributes

classPANEL.CHEM
type1  Laboratory
order vs. observationOrder

Panel Components

74775-8Platelets [#/volume] in Platelet rich plasma by Automated count
71804-9Serotonin [Entitic substance] in Platelets
74769-15-Hydroxyindoleacetate [Moles/volume] in Platelet rich plasma
74768-35-Hydroxytryptophan [Moles/volume] in Platelet rich plasma
74767-5Tryptophan [Moles/volume] in Platelet rich plasma

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 updated2.48
last change typeMIN  - change to field other than name

Related Names

c244
Chemistry
L-tryptophan
Pan
PANEL.CHEMISTRY
Panl
Platelet rich plasma
Pnl
Point in time
Random
Trp
Tryp-related indole profile pnl

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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