What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 57101-8: Follitropin 20 Min post dose gonadotropin releasing hormone Qn

Name: LOINC Code 57101-8: Follitropin 20 Min post dose gonadotropin releasing hormone Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.265Z

57101-8 is a LOINC code used to identify Follitropin 20 Min post dose gonadotropin releasing hormone Qn in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Follitropin^20M post dose gonadotropin releasing hormone. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Follitropin^20M post dose gonadotropin releasing hormone. It is commonly used with the system or sample type Ser/Plas.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Observation

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Follitropin [Units/volume] in Serum or Plasma --20 minutes post dose gonadotropin releasing hormone
Follitropin^20M post dose gonadotropin releasing hormone
20M p GnRH; After; Arbitrary concentration; CHEMISTRY.CHALLENGE TESTING; Follicle stimulating hormone; FSH; GHR; GnRH; Horm; LHRH; Luliberin; Luteinizing hormone releasing hormone; Lutropin release factor; p dose; p GnRH; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Follitropin 20 Min post dose gonadotropin releasing hormone QnFollitropin [Units/volume] in Serum or Plasma --20 minutes post dose gonadotropin releasing hormoneFSH 20M p GnRH SerPl-aCncFollitropin^20M post dose gonadotropin releasing hormoneCHALFollitropin (FSH; Follicle Stimulating Hormone) 20 min after Gonadotropin Releasing Hormone, BloodACnc

Frequently asked questions

Code details

Code57101-8

SystemLOINC

Display nameFollitropin 20 Min post dose gonadotropin releasing hormone Qn

DescriptionFollitropin^20M post dose gonadotropin releasing hormone

Short nameFSH 20M p GnRH SerPl-aCnc

ComponentFollitropin^20M post dose gonadotropin releasing hormone

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmIU/mL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.70

Consumer names

Follitropin (FSH; Follicle Stimulating Hormone) 20 min after Gonadotropin Releasing Hormone, Blood

Part names

Follitropin^20M post dose gonadotropin releasing hormoneACncPtSer/PlasQnArbitrary ConcentrationPoint in time (spot)Serum or Plasma

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.