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.

LOINCActiveOrder

LOINC Code 101668-2: Protein electrophoresis and M protein isotype panel (U)

Name: LOINC Code 101668-2: Protein electrophoresis and M protein isotype panel (U)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.028Z

101668-2 is a LOINC code used to identify Protein electrophoresis and M protein isotype panel (U) 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 Protein electrophoresis & monoclonal protein isotype panel. It is commonly used with the system or sample type Urine.

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 Protein electrophoresis & monoclonal protein isotype panel. It is commonly used with the system or sample type Urine.

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: Order
Panel type: Panel

What it does not mean

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

Key facts

Protein electrophoresis and M protein isotype panel - Urine
Protein electrophoresis & monoclonal protein isotype panel
This panel contains results for electrophoresis testing as well as monoclonal protein isotype by MALDI-TOF, and is used for diagnosing monoclonal gammopathies using random urine specimens.
Chemistry; MPQU; Pan; PANEL.CHEMISTRY; Panl; PEUR; Pnl; Point in time; PR; Prot; Random; UA; UPEP; UR; Urn

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

Protein electrophoresis and M protein isotype panel (U)Protein electrophoresis and M protein isotype panel - UrineRMPQU UrProtein electrophoresis & monoclonal protein isotype panelPANEL.CHEMProtein Electrophoresis and M Protein Isotype Panel, Urine-

Frequently asked questions

Code details

Code101668-2

SystemLOINC

Display nameProtein electrophoresis and M protein isotype panel (U)

DescriptionProtein electrophoresis & monoclonal protein isotype panel

Short nameRMPQU Ur

ComponentProtein electrophoresis & monoclonal protein isotype panel

Property-

TimingPt

System (specimen)Urine

Scale-

ClassPANEL.CHEM

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.75

Last changed2.75

Consumer names

Protein Electrophoresis and M Protein Isotype Panel, Urine

Part names

Protein electrophoresis & monoclonal protein isotype panel-PtUrineProtein electrophoresis and M protein isotype panelPoint in time (spot)

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.