Version 2.78

Term Description

The level of similarity score indicates how similar the result from an unknown sample is to a reference sample. A higher score indicates that identification is possible at the species level, versus an intermediate score that allows identification at the genus level. Low scores do not allow identification of the organism from the unknown sample. The specific scores at which genus- and species-level identification is possible vary by microorganism. PMID: 28143403
Source: Regenstrief LOINC

Part Description

LP186074-3   MS.MALDI-TOF
Matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) is a type of mass spectrometry (MS). MALDI-TOF MS consists of three primary steps: 1) mixing the sample with an organic matrix, which provides a scaffolding and also protons for the ionization process; 2) applying a laser to the matrix, which absorbs energy from the laser and releases it into the sample, which causes the sample to desorb and form singly charged ions; and 3) using a flight tube to analyze the mass of the ions, ultimately resulting in a mass spectrum in which the mass-to-charge is plotted against signal intensity. MALDI-TOF is a soft ionization technique, meaning that molecules remain relatively intact during ionization. Because of this property, MALDI-TOF can be used for protein analysis; in contrast, older MS techniques cause extensive protein fragmentation and therefore cannot be used for this purpose. One application of MALDI-TOF is in clinical microbiology; compared to traditional methods, MALDI-TOF is faster and more accurate in identifying specific microorganisms. PMID: 23824373 Source: Regenstrief LOINC, PMID: 23824373

Fully-Specified Name

Component
Microorganism level of similarity to reference sample
Property
Score
Time
Pt
System
Isolate/Specimen
Scale
Qn
Method
MS.MALDI-TOF

Additional Names

Short Name
Microorg lvl sim ref smpl Islt/Spm M
Display Name
Microorganism level similarity to reference sample MS.MALDI-TOF (Islt/Spec) [Score]
Consumer Name Alpha Get Info
Microorganism level similarity to reference sample

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.74
Last Updated
Version 2.75
Order vs. Observation
Observation

Formula (Readable)

Numerical score value ranged 0-3

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Nivel de similitud del microorganismo con la muestra de referencia:Puntuación:Punto temporal:Muestra aislada:Qn:MS.MALDI-TOF
Synonyms: Cuantitativo
fr-FR French (France) Niveau de similitude du micro-organisme avec l'échantillon de référence:Score:Ponctuel:Isolat/échantillon:Numérique:Spectrométrie MALDI-TOF
it-IT Italian (Italy) Livello di somiglianza del microrganismo al campione di riferimento:Punteggio:Pt:Isolato/Campione:Qn:MS.MALDI-TOF
Synonyms: Isolato o Campione Microbiologia Punto nel tempo (episodio)
zh-CN Chinese (China) 微生物与参考样品的相似性水平:评分:时间点:分离株/标本:定量型:MS.MALDI-TOF
Synonyms: 供检查用的材料;待检物;待试验物;样品;样本;试料;试样 分值;得分;分数 分离株/标本（样本、样品、试样） 分离物;分离菌;分离菌株;隔离种群 受检物 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 基质辅助激光解吸/电离飞行时间质谱;基质辅助激光解吸电离飞行时间质谱;基质辅助激光解吸飞行时间质谱;基质辅助激光解析电离飞行时间质谱;Matrix-Assisted Laser Desorption/ Ionization Time of Flight Mass Spectrometry;MALDI-TOF-MS;Matrix-assisted laser desorption ionization-time of flight 微生物与参考样品的相似性水平（相似程度、类似程度） 微生物学;微生物学试验;微生物学试验（培养、DNA、抗原及抗体） 时刻;随机;随意;瞬间 样品 样本 程度 等级 级 级别 试样

Example Units

Unit Source
{score} Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=101418-2