{"id":7767,"date":"2024-03-12T11:55:41","date_gmt":"2024-03-12T10:55:41","guid":{"rendered":"https:\/\/testmijnbloed.be\/the-peth-test-the-importance-of-phosphatidylethanol-peth-in-driving-tests\/"},"modified":"2025-04-14T11:59:41","modified_gmt":"2025-04-14T09:59:41","slug":"the-peth-test-the-importance-of-phosphatidylethanol-peth-in-driving-tests","status":"publish","type":"post","link":"https:\/\/testmijnbloed.be\/en\/the-peth-test-the-importance-of-phosphatidylethanol-peth-in-driving-tests\/","title":{"rendered":"The PEth test: the importance of Phosphatidylethanol (PEth) in driving tests"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-parallax-none nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: #ffffff;background-image: url(&quot;https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/De-PEth-test-het-belang-van-Phosphatidylethanol-PEth-in-rijvaardigheidsonderzoeken-300x241.png&quot;);background-position: center center;background-repeat: no-repeat;padding-top:4%;padding-right:5%;padding-bottom:4%;padding-left:5%;margin-bottom: 0px;margin-top: 0px;border-width: 0px 0px 0px 0px;border-color:#ffffff;border-style:solid;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"margin-top:20%;margin-bottom:20%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: #ffffff;background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#ffffff;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1216.8px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><div class=\"fusion-text fusion-text-1\" style=\"margin-top:2%;\"><h2 style=\"text-align: center;\">The PEth test: the importance of Phosphatidylethanol (PEth) in driving tests<\/h2>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:30px;width:100%;\"><div class=\"fusion-separator-border sep-single\" style=\"border-color:#e0dede;border-top-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-2\"><p>Individuals seeking a review or lifting of a driving ban must add supporting documents to their file. Phosphatidylethanol (PEth) test results play a crucial role here.<\/p>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Demonstration of alcohol abstinence<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-3\"><p><strong>PEth provides an indication of alcohol use in the past month<\/strong>, while alcohol itself is detectable only up to 10-12 hours after ingestion. <strong>Regular PEth testing can help demonstrate long-term abstinence<\/strong>, which is relevant for driving tests.<\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:30px;width:100%;\"><div class=\"fusion-separator-border sep-single\" style=\"border-color:#e0dede;border-top-width:0px;\"><\/div><\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-2{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-2{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Legal applications of PEth<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p>In addition to drunk driving, there are other legal situations in which the PEth test can be useful. Consider, for example:<\/p>\n<ul>\n<li><strong>Family law cases<\/strong>: In custody cases as evidence of a parent controlling his or her alcohol use.<\/li>\n<li><strong>Employment law cases<\/strong>: Employees who have lost their jobs because of alcohol-related problems.<\/li>\n<li><strong>Criminal cases<\/strong>: Demonstrating a change in alcohol consumption may affect sentencing.<\/li>\n<\/ul>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-3{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-3{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Practical information<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-5\"><ul>\n<li>Sample collection is always performed under supervision by experienced AZ Delta medical staff and always unambiguously identified.<\/li>\n<li>PEth and alcohol are tested in the blood at the same time.<\/li>\n<li><strong>Testing frequency is weekly. Make an appointment online <a href=\"https:\/\/testmijnbloed.be\/en\/contact\/\">here<\/a>. <\/strong><\/li>\n<li><strong>Results are delivered digitally via secure email within 8 working days.<\/strong><\/li>\n<li><strong>The cost is 150 euros (including VAT).<\/strong><\/li>\n<\/ul>\n<\/div><div ><style type=\"text\/css\">.fusion-button.button-1 {border-radius:2px;}<\/style><a class=\"fusion-button button-flat button-medium button-default button-1 fusion-button-default-span fusion-button-default-type\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/testmijnbloed.be\/en\/preventieve-test\/peth-test\/\"><i class=\"fa-arrow-right fas button-icon-left\" aria-hidden=\"true\"><\/i><span class=\"fusion-button-text\">VIEW OUR PETH TEST<\/span><\/a><\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-4{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-4{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Scientific background of PEth<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-6\"><p>PEth consists of a group of compounds of phospholipids with ethanol formed in red blood cells under the influence of the enzyme phospholipase D.<\/p>\n<p>The enzyme phospholipase D has multiple isoforms with different pharmacokinetics. There are about 50 PEth phospholipid homologs with variable length and saturation. PEth 16:0\/18:1 is the most prominent at 37% and is measured for that reason.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-medium wp-image-6324\" src=\"https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/peth-enzym-300x148.png\" alt=\"\" width=\"300\" height=\"148\" srcset=\"https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/peth-enzym-200x99.png 200w, https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/peth-enzym-300x148.png 300w, https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/peth-enzym-400x197.png 400w, https:\/\/testmijnbloed.be\/wp-content\/uploads\/2024\/03\/peth-enzym.png 420w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-5{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-5{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Specific properties of PEth as an alcohol marker<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-7\"><p>PEth is only present in the blood after alcohol consumption. It has a half-life (the time required for half of a given substance to break down) of 4-10 days, but varies widely among different individuals.<\/p>\n<p>After 1 alcohol consumption, PEth can be detected 1 to 2 hours later. With regular alcohol consumption, it accumulates in red blood cells.<\/p>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-6{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-6{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>PEth vs. CDT?<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-8\"><p>Although CDT (Carbohydrate-Deficient Transferrin) has long been used as a biomarker for long-term alcohol consumption, Phosphatidylethanol (PEth) has increasingly proven to be a superior indicator. Here are some reasons why PEth is often preferred to CDT:<\/p>\n<ol>\n<li><strong>More sensitive to short-term and moderate alcohol consumption<\/strong>: PEth can be detected even after a single alcohol intake, whereas CDT will be elevated only with long-term and heavy alcohol consumption (&gt;50-80 g\/day for 1-2 weeks).<\/li>\n<li><strong>Longer detection period<\/strong>: while CDT normalizes after 2-3 weeks of abstinence, PEth has a longer half-life and can demonstrate total abstinence from alcohol for a longer period (1 month on average).<\/li>\n<li><strong>Less influenced by other factors:<\/strong> CDT is not a good marker for individuals with liver disease or certain genetic transferrin variants. PEth is less influenced by these.<\/li>\n<li><strong>Objective measurement<\/strong>: PEth tests provide an objective measurement of actual alcohol use, whereas CDT tests can provide &#8220;false negative&#8221; results. A &#8220;normal&#8221; CDT is not probative of abstinence or absence of problematic alcohol use.<\/li>\n<li><strong>Better correlation with alcohol intake<\/strong>: PEth has a direct relationship with the amount of alcohol ingested, making it a more reliable indicator of actual alcohol consumption. PEth is a much better marker to demonstrate moderate to intermittent alcohol intake.<\/li>\n<\/ol>\n<\/div><style type=\"text\/css\">@media only screen and (max-width:640px) {.fusion-title.fusion-title-7{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-7{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h3 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:2.2;\"><h3>Conclusion<\/h3><\/h3><\/div><div class=\"fusion-text fusion-text-9\"><p><strong>The PEth test not only provides a valuable tool for restoring driving privileges, but also has broad applications in various legal contexts.<\/strong><\/p>\n<p>Through reliable and objective measurements, it can help demonstrate alcohol abstinence and influence decision-making in legal matters.<\/p>\n<p><strong>Do you have questions about the PEth test? Please do not hesitate to contact us via our <a href=\"https:\/\/testmijnbloed.be\/en\/contact\/\">contact form<\/a> or call 051\/920.911 <\/strong><\/p>\n<\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-1{width:100% !important;margin-top : 0px;margin-bottom : 30px;}.fusion-builder-column-1 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-1{width:100% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-1{width:100% !important;order : 0;}.fusion-builder-column-1 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-2{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":10,"featured_media":7586,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[74],"tags":[],"class_list":["post-7767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The importance of Phosphatidylethanol (PEth) in driving tests | Test My Blood<\/title>\n<meta name=\"description\" content=\"Individuals seeking a review or lifting of a driving ban must add supporting documents to their file. 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