Gonadotropin-releasing Hormone

CPT: 83727
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Test Details

Synonyms

  • GNRH
  • LHRH

Methodology

High-pressure liquid chromatography/tandem mass spectrometry (HPLC/MS-MS)

Specimen Requirements

Specimen

Plasma with aprotinin (Trasylol®), frozen

Volume

1 mL

Minimum Volume

0.5 mL (Note: This volume does not allow for repeat testing.)

Container

Trasylol® collection kit (Obtain N° 33328 through LabCorp branch locations.)

Collection

Using a chilled lavender-top (EDTA) tube, collect a whole blood specimen, add 0.25 mL of Trasylol® to the tube and mix well. Centrifuge the sample and remove the plasma. Freeze immediately. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions

Freeze.

Stability Requirements

Temperature

Period

Refrigerated

48 days

Frozen

291 days

Causes for Rejection

Thawed or nonfrozen specimen; specimen type other than EDTA plasma

Clinical Information

Special Instructions

Add aprotinin (Trasylol®) to all specimens to allow for analyte stability. Separate plasma immediately, store, and ship frozen.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
502421 Gonadotropin Releasing Hormone 502422 Gonadotropin Releasing Hormone pg/mL 13660-6
502421 Gonadotropin Releasing Hormone 502423 Gonadotropin Releasing Hormone N/A

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The LOINC® codes are copyright © 1994-2017, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf