{"id":6468,"date":"2026-06-29T14:10:08","date_gmt":"2026-06-29T18:10:08","guid":{"rendered":"https:\/\/laboratorytesting.com\/?page_id=6468"},"modified":"2026-06-29T14:19:33","modified_gmt":"2026-06-29T18:19:33","slug":"understanding-presumptive-positive-results-at-emsl-analytical-inc","status":"publish","type":"page","link":"https:\/\/laboratorytesting.com\/fr\/resources\/microbiology\/understanding-presumptive-positive-results-at-emsl-analytical-inc\/","title":{"rendered":"Comprendre les r\u00e9sultats pr\u00e9sum\u00e9s positifs chez EMSL Analytical, Inc."},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"6468\" class=\"elementor elementor-6468\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f0777b3 bg-four-corner-image elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f0777b3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4760a46\" data-id=\"4760a46\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4f2fe9f elementor-widget elementor-widget-heading\" data-id=\"4f2fe9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comprendre les r\u00e9sultats \u201c pr\u00e9sum\u00e9s positifs \u201d<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7f38a0 elementor-widget elementor-widget-image\" data-id=\"a7f38a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1440\" height=\"531\" src=\"https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image.jpg\" class=\"attachment-full size-full wp-image-6470\" alt=\"\" srcset=\"https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image.jpg 1440w, https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image-300x111.jpg 300w, https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image-1024x378.jpg 1024w, https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image-768x283.jpg 768w, https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image-950x350.jpg 950w, https:\/\/laboratorytesting.com\/wp-content\/uploads\/2026\/06\/understanding-presumptive-positive-results-image-600x221.jpg 600w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c6595c elementor-widget elementor-widget-text-editor\" data-id=\"3c6595c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Chez EMSL Analytical, Inc., nous nous engageons \u00e0 vous fournir des r\u00e9sultats d&#039;analyse pr\u00e9cis et rapides. Dans le cadre de notre processus d&#039;analyse, vous pourriez rencontrer le terme \u201c\u00a0pr\u00e9sum\u00e9 positif\u00a0\u201d dans votre rapport de laboratoire. Vous trouverez ci-dessous la signification de ce terme et comment l&#039;interpr\u00e9ter.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8db31f elementor-widget elementor-widget-heading\" data-id=\"a8db31f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Qu&#039;est-ce qu&#039;un cas pr\u00e9sum\u00e9 positif\u00a0?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc7cfc4 elementor-widget elementor-widget-text-editor\" data-id=\"bc7cfc4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Un r\u00e9sultat pr\u00e9sum\u00e9 positif indique que le d\u00e9pistage ou le test initial a d\u00e9tect\u00e9 la pr\u00e9sence potentielle d&#039;un organisme, d&#039;une substance ou d&#039;un contaminant cible. Ce r\u00e9sultat sugg\u00e8re que l&#039;\u00e9chantillon pourrait contenir l&#039;analyte recherch\u00e9, mais une confirmation ou une analyse suppl\u00e9mentaire est n\u00e9cessaire pour une identification d\u00e9finitive.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-413ff8a elementor-widget elementor-widget-heading\" data-id=\"413ff8a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Pourquoi parle-t-on de \u201c pr\u00e9somption \u201d ?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d38003 list-left-align elementor-widget elementor-widget-text-editor\" data-id=\"1d38003\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Le test ou d\u00e9pistage initial est con\u00e7u pour \u00eatre tr\u00e8s sensible afin de d\u00e9tecter m\u00eame de petites quantit\u00e9s de la cible.<\/li><li>Bien que sensible, le test de d\u00e9pistage peut parfois d\u00e9tecter des substances qui imitent la cible, ce qui conduit \u00e0 un r\u00e9sultat pr\u00e9sum\u00e9 positif.<\/li><li>Pour confirmer ce r\u00e9sultat, des analyses compl\u00e9mentaires ou des tests plus sp\u00e9cifiques peuvent \u00eatre n\u00e9cessaires.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcb10c6 elementor-widget elementor-widget-heading\" data-id=\"dcb10c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Que va-t-il se passer ensuite ?<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d09424e list-left-align elementor-widget elementor-widget-text-editor\" data-id=\"d09424e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En cas de r\u00e9sultat pr\u00e9sum\u00e9 positif, EMSL Analytical recommandera g\u00e9n\u00e9ralement ou proc\u00e9dera automatiquement \u00e0 un test de confirmation (selon votre contrat de test). Ce test secondaire permettra de\u00a0:<\/p><ol><li>Valider les r\u00e9sultats initiaux.<\/li><li>Fournir une identification et\/ou une quantification concluantes de la cible.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84a3c57 elementor-widget elementor-widget-heading\" data-id=\"84a3c57\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Applications courantes des r\u00e9sultats pr\u00e9sum\u00e9s positifs<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a6e6190 elementor-widget elementor-widget-text-editor\" data-id=\"a6e6190\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Les r\u00e9sultats pr\u00e9sum\u00e9s positifs sont souvent rencontr\u00e9s dans les sc\u00e9narios de test suivants\u00a0:<\/p><ul><li>Analyses microbiologiques\u00a0: D\u00e9tection de bact\u00e9ries, de moisissures ou d\u2019agents pathog\u00e8nes.<ul><li>Exemple\u00a0: Un r\u00e9sultat pr\u00e9sum\u00e9 positif pour Legionella sugg\u00e8re que les tests initiaux ont d\u00e9tect\u00e9 la pr\u00e9sence potentielle d\u2019esp\u00e8ces de Legionella.<\/li><\/ul><\/li><li>Analyses environnementales : d\u00e9pistage des contaminants dans l&#039;air, l&#039;eau ou le sol.<ul><li>Exemple : Un r\u00e9sultat pr\u00e9sum\u00e9 positif pour les fibres d&#039;amiante signifie que l&#039;analyse initiale sugg\u00e8re la pr\u00e9sence d&#039;amiante.<\/li><\/ul><\/li><li>Tests de s\u00e9curit\u00e9 alimentaire\u00a0: D\u00e9tection d\u2019agents pathog\u00e8nes comme la salmonelle ou la listeria.<ul><li>Exemple : Un r\u00e9sultat pr\u00e9sum\u00e9 positif \u00e0 la salmonelle indique la n\u00e9cessit\u00e9 d&#039;effectuer des tests de culture de confirmation.<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d4ff56 elementor-widget elementor-widget-heading\" data-id=\"0d4ff56\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Points cl\u00e9s \u00e0 retenir<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6018d60 list-left-align elementor-widget elementor-widget-text-editor\" data-id=\"6018d60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol><li>Un r\u00e9sultat pr\u00e9sum\u00e9 positif ne garantit pas la pr\u00e9sence de la cible, mais constitue une indication initiale.<\/li><li>Des tests de confirmation sont n\u00e9cessaires pour identifier d\u00e9finitivement la substance ou l&#039;organisme cible dans l&#039;\u00e9chantillon.<\/li><li>EMSL Analytical est l\u00e0 pour vous guider et s&#039;assurer que vos r\u00e9sultats sont pr\u00e9cis et exploitables.<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42843e9 elementor-widget elementor-widget-heading\" data-id=\"42843e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Contactez-nous pour obtenir de l&#039;aide<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7a53ab list-left-align elementor-widget elementor-widget-text-editor\" data-id=\"c7a53ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Si vous avez des questions concernant vos r\u00e9sultats ou si vous avez besoin d&#039;aide pour comprendre un rapport pr\u00e9sum\u00e9 positif, n&#039;h\u00e9sitez pas \u00e0 nous contacter\u00a0: <br \/>T\u00e9l\u00e9phone : (800) 220-3675 <br \/>Site web: <a href=\"http:\/\/www.emsl.com\/\" target=\"_blank\" rel=\"noopener\">www.emsl.com<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Understanding \u201cPresumptive Positive\u201d Results At EMSL Analytical, Inc., we are committed to providing you with accurate and timely analytical results. As part of our testing process, you may encounter the term \u201cPresumptive Positive\u201d in your laboratory report. Below, we\u2019ve outlined [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2740,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","footnotes":""},"class_list":["post-6468","page","type-page","status-publish","hentry","slug-understanding-presumptive-positive-results-at-emsl-analytical-inc","even_post_id"],"_links":{"self":[{"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/pages\/6468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/comments?post=6468"}],"version-history":[{"count":4,"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/pages\/6468\/revisions"}],"predecessor-version":[{"id":6473,"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/pages\/6468\/revisions\/6473"}],"up":[{"embeddable":true,"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/pages\/2740"}],"wp:attachment":[{"href":"https:\/\/laboratorytesting.com\/fr\/wp-json\/wp\/v2\/media?parent=6468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}