81630-6

LOINC Code


LOINC code81630-6
name
descriptionThe methotrexate polyglutamates (MTX-PGs) panel contains measurement results for total MTX-PGs and each individual polyglutamate (PG1-5) in red blood cells. Results are used to guide treatment planning for methotrexate and evaluation for various diseases, including rheumatoid arthritis.
statusACTIVE

Fully-Specified Name

componentMethotrexate polyglutamates 1-5 & total 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.
systemRBC  =  Erythrocytes
scale-
method

Additional Names

short nameAmethoperin; Amethopterin; DRUG/TOXICOLOGY; Drugs; Erythrocytes; i; Methotrexat; Methotrexate polyglutamates; MTX; MTXpg; MTXpgs; MTX-PGs; MTX-PGs 1-5 + Total Pnl; Pan; PANEL.DRUG & TOXICOLOGY; Panl; Pnl; Point in time; RA; Random; Red blood cells; Red bl

Basic Attributes

classPANEL.DRUG/TOX
type1  Laboratory
order vs. observationMTX-PGs 1-5 + T

Panel Components

81628-0
81627-2
81626-4
81625-6
81624-9
76351-6
81631-4

History/Usage

first released
last updated2.56
last change typeADD  - added

Related Names



Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, 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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