Version 2.77


A gradient strip is a reagent strip that contains a predefined concentration gradient of a specific antibiotic or combination of antibiotics that is used for antimicrobial susceptibility testing (AST) and antimicrobial resistance detection (ARD).
For AST, the result is reported in terms of the minimum inhibitory concentration (MIC) of a specific antimicrobial that prevents the visible growth of bacteria. In LOINC, the "Gradient strip" method is used for AST gradient strips that result in an MIC result.
For ARD, the result is reported as the presence or absence of a specific enzyme or other mechanism that confers resistance, which is determined based on comparing the inhibitory concentration (IC) of a specific antimicrobial with the IC of that antimicrobial plus a resistance inhibitor. In LOINC, the "Gradient strip ARD" method is used for ARD gradient strips, which are not intended for determining individual MIC values. Source: Regenstrief LOINC

Basic Part Properties

Part Display Name
Gradient strip
Part Type
Method (Describes the method by which the test was performed)
Created On
Construct for LOINC Short Name
Grad strip

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Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) 梯度胶条法
Synonyms: E-胶条法;E-试验;E-试验法;梯度条;梯度条法;梯度板条;梯度板条法;梯度胶条;梯度胶片;梯度胶片法;E-胶条
fr-CA French (Canada) Bâtonnet gradué
et-EE Estonian (Estonia) E-test
es-ES Spanish (Spain) Tira de gradiente (E-prueba)
it-IT Italian (Italy) Gradiente striscia
Synonyms: Gradiente striscia (E-test)
tr-TR Turkish (Turkey) Gradiyent çubuğu
ru-RU Russian (Russian Federation) Градиентная полоска
Synonyms: Градиентная полоска (Е-тест)
nl-NL Dutch (Netherlands) gradiëntstrip
fr-BE French (Belgium) Bâtonnet gradué
Synonyms: Tigette graduée
pl-PL Polish (Poland) pasek gradientu