{"id":10790,"date":"2026-03-01T18:44:33","date_gmt":"2026-03-01T18:44:33","guid":{"rendered":"https:\/\/www.swisspointofcare.com\/?p=10790"},"modified":"2026-10-02T10:59:25","modified_gmt":"2026-10-02T10:59:25","slug":"frequently-asked-questions-faq-3","status":"publish","type":"post","link":"https:\/\/www.swisspointofcare.com\/en\/kb\/frequently-asked-questions-faq-3\/","title":{"rendered":"Frequently Asked Questions (FAQ)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10790\" class=\"elementor elementor-10790\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6390453f e-flex e-con-boxed e-con e-parent\" data-id=\"6390453f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d24793b elementor-widget elementor-widget-text-editor\" data-id=\"4d24793b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For reliable results, it is essential that every test is performed correctly. Strictly following the prescribed procedures significantly reduces the chance of errors and ensures that the measured values are accurate.<\/p><section id=\"important-points\"><h2>Important points before you start<\/h2><h3 id=\"meter-settings\">Meter settings<\/h3><ul><li>Make sure you work with the correct measurement ( <abbr title=\"millimoles per liter\">mmol\/L<\/abbr> or <abbr title=\"milligrams per deciliter\">mg\/dL<\/abbr>, depending on the purchased meter).<\/li><li>Ensure you are using the correct test strips for glucose or ketones.<\/li><li>Insert the correct calibration chip the first time you open a new box of strips.<\/li><\/ul><h3 id=\"test-protocol\">Test protocol<\/h3><ul><li>Wash and dry your hands thoroughly before testing.<\/li><li>Always wipe away the first drop of blood; use the second drop.<\/li><li>Let the tip of the strip gently touch the blood droplet\u2014it will be absorbed automatically.<\/li><\/ul><h3 id=\"resources\">Helpful resources<\/h3><ul><li><a href=\"https:\/\/youtu.be\/Xfn9h3xwnTo\" target=\"_blank\" rel=\"noopener\">Instructional video<\/a><\/li><li><a href=\"https:\/\/www.go-keto.com\/wp-content\/uploads\/2025\/09\/1151203402-Go-Keto-CE0123-Manual-EN-Lab-N-012622-2.pdf\">User manual (PDF)<\/a><\/li><li>Quick start guide<\/li><\/ul><\/section><nav class=\"toc\" aria-labelledby=\"toc-title\"><h2 id=\"toc-title\">Contents<\/h2><ol><li><a href=\"#e4-notification\">E\u20114 Notification \u2013 Used or incorrectly handled strip<\/a><\/li><li><a href=\"#e5-notification\">E\u20115 Notification \u2013 Not enough blood<\/a><\/li><li><a href=\"#one-finger-prick\">Measuring Glucose and Ketones with One Finger Prick<\/a><\/li><li><a href=\"#different-values\">Different Values \u2013 Understanding your results<\/a><\/li><li><a href=\"#control-solution-test\">Control Solution Test \u2013 Checking meter accuracy<\/a><\/li><li><a href=\"#title6\">How to switch the Go-Keto\/GK Dual meter between mmol\/L and mg\/L?\u00a0<\/a><\/li><\/ol><\/nav><hr \/><section id=\"e4-notification\" aria-labelledby=\"e4-title\"><h2 id=\"e4-title\">1. E\u20114 Notification \u2013 Used or incorrectly handled strip<\/h2><dl><dt>What do you see?<\/dt><dd>The meter displays error code <strong>E\u20114<\/strong>.<\/dd><dt>What does it mean?<\/dt><dd>The strip was used incorrectly or has already been used.<\/dd><\/dl><h3>Possible causes<\/h3><ul><li>Blood was applied to the strip before inserting it into the meter.<\/li><li>The strip was inserted upside down or backwards.<\/li><\/ul><h3>How to avoid this<\/h3><ul><li>Insert the strip into the meter first.<\/li><li>Wait for the blinking blood drop icon to appear.<\/li><li>Apply blood only to the tip of the strip.<\/li><\/ul><\/section><hr \/><section id=\"e5-notification\" aria-labelledby=\"e5-title\"><h2 id=\"e5-title\">2. E\u20115 Notification \u2013 Not enough blood<\/h2><dl><dt>This error code indicates that there&#8217;s too little blood on the test strip to perform the test.<h3>How can this happen?<\/h3><p>a.) If you put the blood on the flat part of the test strip instead of touching it with the end of the test strip.<br \/>b.) If you press the test strip against your finger, so that the opening gets \u201cclogged\u201d. When the small opening in the strip is blocked, it can&#8217;t absorb the blood.<br \/>c.) If the drop of blood on your finger is too small.<\/p><p>If you find it hard to get a drop of blood that&#8217;s large enough, try the following.<\/p><ul><li>Before pricking your finger, rub your hands together well to warm them and make a fist a few times. This will increase the blood flow to your fingertips.<\/li><li>Adjust the lancet&#8217;s piercing depth on your lancing pen. Please refer to the lancing pen&#8217;s manual for the correct way to do this.<\/li><li>Don&#8217;t wait after pricking your finger. Just wipe off the first drop of blood and use the second one immediately.<\/li><\/ul><p><strong><br \/>The correct way of measuring is:\u00a0<\/strong><\/p><ol><li>Take a new and unused test strip and place it correctly in the meter.<\/li><li>Check whether the code on the screen matches the number of the test strip.<\/li><li>Wait for the droplet icon to flash on the screen.<\/li><li>Prick your finger with the lancing pen.<\/li><li>Wipe off the first drop of blood. You need to use the second drop.<\/li><li>Hold the meter with the inserted strip in the other hand. Then gently touch the drop of blood with the end of the strip.<\/li><li>The blood is drawn into the strip. You will see the channel inside the strip filling up.<\/li><li>The meter counts down and displays the test result.<\/li><\/ol><h3>Using the test strip<\/h3><p>Don&#8217;t put blood or control solution on the flat top of the test strip. When you have a little round drop of blood on your fingertip, you can gently touch it with the end of the strip. You only need a small drop. Each test strip has a built-in tube (capillary) with an opening at the end of the strip. If you touch the drop of blood with this tube, it will absorb the blood. The meter then counts down and show the test result.<\/p><\/dt><\/dl><\/section><hr \/><section id=\"one-finger-prick\" aria-labelledby=\"one-finger-title\"><h2 id=\"one-finger-title\">3. Measuring Glucose and Ketones with One Finger Prick<\/h2><p>Yes, the Go\u2011Keto meter allows you to measure both glucose and ketones with a single finger prick.<\/p><h3>How it works<\/h3><ul><li><strong>Blue code chip:<\/strong> for ketone testing.<\/li><li><strong>White code chip:<\/strong> for glucose testing (insert the first time you use a new box of glucose strips).<\/li><li>Once calibrated, you can leave the blue chip in the meter permanently.<\/li><li>You only need to insert the glucose chip again when starting a new box of glucose strips.<\/li><\/ul><\/section><hr \/><section id=\"different-values\" aria-labelledby=\"different-values-title\"><h2 id=\"different-values-title\">4. Different Values \u2013 Understanding your results<\/h2><p>It is normal to see differences between your self\u2011test results and those from a laboratory, or even between two self\u2011tests.<\/p><h3>Why can results vary?<\/h3><ul><li><strong>Sample type:<\/strong> The meter uses capillary blood (fingerstick), while laboratories often test venous blood.<\/li><li><strong>Technology:<\/strong> The Go\u2011Keto meter uses electrochemical analysis, whereas labs may use different methods.<\/li><li><strong>Timing:<\/strong> Glucose and ketone levels change throughout the day and are strongly influenced by food, exercise, and fasting.<\/li><\/ul><h3>Important to know<\/h3><ul><li>Glucose values may be higher or lower depending on the time since your last meal.<\/li><li>Ketone levels typically rise during fasting, low\u2011carb eating, or after prolonged exercise.<\/li><li>Always test under consistent conditions to best track your personal trends.<\/li><\/ul><p class=\"note\">The Go\u2011Keto meter is designed for monitoring trends over time, not for exact one\u2011to\u2011one comparison with laboratory results.<\/p><\/section><hr \/><section id=\"control-solution-test\" aria-labelledby=\"control-title\"><h2 id=\"control-title\">5. Control Solution Test \u2013 Checking meter accuracy<\/h2><p>The control solution included in your Go-Keto starter kit helps you verify that your meter and test strips are working correctly. Performing a control test regularly ensures accurate ketone measurements.<\/p><h3>Before you start<\/h3><ul class=\"ql-rendered-list-container\" data-test=\"rendered-list-container\" data-is-root=\"true\"><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-VcvGvkp41q\">Check the expiration date of both the test strips and the control solution<\/li><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-KhOuw2733C\">Make sure the correct code chip is inserted (the one that comes with your test strips)<\/li><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-rjrKzvMbYx\">The code number on the display must match the code number on the test strip vial<\/li><\/ul><h3><strong>How to perform a control test<\/strong><\/h3><ol class=\"ql-rendered-list-container\" data-test=\"rendered-list-container\" data-is-root=\"true\"><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-xuT32s8HEb\">Insert a ketone test strip into the meter. The device will turn on automatically.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-KwGDnfOXqy\">Check that the code number on the screen matches the code number on the test strip vial. If not, insert the correct code chip before continuing.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-woeBq5Gw51\"><strong>Press the M button to mark the test as a control test (this step is very important).<\/strong> The control solution symbol must appear on the screen.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-sN9ktwpQp3\">Shake the control solution bottle well. Dispense the first drop and discard it.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-LVYak6VsbC\">Place a second small drop on a clean, non-absorbent surface.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-vhKNZ0zcvy\">Touch the tip of the test strip to the drop.<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-ckuyoGUnCo\">Wait for the countdown (approximately 8 seconds).<\/li><li class=\"ql-rendered-ordered-list\" data-test=\"rendered-list-item-ordered\" data-block-id=\"block-Ocey6F2b0r\">Read the result on the screen and compare it with the control range printed on the test strip vial.<\/li><\/ol><p><strong>Important<\/strong><\/p><ul class=\"ql-rendered-list-container\" data-test=\"rendered-list-container\" data-is-root=\"true\"><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-yD5f2L_Ed5\">Results from Control Solution 0 must fall within <strong>CTRL 0<\/strong><\/li><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-I1xVlgdnOZ\">Results from Control Solution 1 must fall within <strong>CTRL 1<\/strong><\/li><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-7aDz38pYY6\">Results from Control Solution 2 must fall within <strong>CTRL 2<\/strong><\/li><\/ul><h3>Understanding your result<\/h3><ul class=\"ql-rendered-list-container\" data-test=\"rendered-list-container\" data-is-root=\"true\"><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-weDVlYLDzT\">If the result is within the control range \u2192 your meter and test strips are working correctly<\/li><li class=\"ql-rendered-bullet-list\" data-test=\"rendered-list-item-bullet\" data-block-id=\"block-uQl30zFSov\">If the result is outside the range \u2192 repeat the control test carefully<\/li><\/ul><p>If the result is still outside the range after repeating the test, please <a href=\"https:\/\/www.swisspointofcare.com\/en\/contact\/\">contact us<\/a> so we can assist you further.<\/p><\/section><hr \/><section id=\"control-solution-test\" aria-labelledby=\"control-title\"><h2 id=\"title6\">6. How to switch the Go-Keto\/GK Dual meter between mmol\/L and mg\/L?<\/h2><p>It is not possible to change this in the meter&#8217;s settings. When you purchase a Go-Keto meter or GK Dual meter, you choose either the mmol\/L or the mg\/L model.<br \/>Ketone values are measured in mmol\/L by default. But this is different for the measuring of glucose values. The standard used depends on the country where you live.<\/p><h3>Which meter should I choose?<\/h3><p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-41425\" src=\"https:\/\/www.go-keto.com\/wp-content\/uploads\/2025\/09\/Picture1.png\" alt=\"\" width=\"550\" height=\"546\" \/><\/p><\/section><hr \/>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e60338d e-flex e-con-boxed e-con e-parent\" data-id=\"1e60338d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6411a47f e-flex e-con-boxed e-con e-parent\" data-id=\"6411a47f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ac2a510 e-flex e-con-boxed e-con e-parent\" data-id=\"ac2a510\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-725b348 elementor-widget elementor-widget-html\" data-id=\"725b348\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What does the E-4 notification mean on the Go-Keto meter?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The E-4 notification means the test strip was used incorrectly or has already been used. This can happen if blood was applied before inserting the strip, or if the strip was inserted upside down or backwards. Insert the strip first, wait for the blinking blood drop icon, and apply blood only to the tip of the strip.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What does the E-5 notification mean on the Go-Keto meter?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The E-5 notification means there is not enough blood on the test strip to perform the test. Use a new test strip, wait for the droplet icon, wipe away the first drop of blood, and use the second drop. Gently touch the blood drop with the tip of the strip so the blood is absorbed automatically.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Can I measure glucose and ketones with one finger prick?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Yes, the Go-Keto meter allows you to measure both glucose and ketones with one finger prick.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Why are my Go-Keto meter results different from lab results or other self-tests?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Differences can occur because the Go-Keto meter uses capillary blood while laboratories often use venous blood. Levels also fluctuate throughout the day.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"How do I perform a Go-Keto control solution test?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"Before starting, check expiration dates and code chip. Insert a strip, press the M button (very important), shake solution, discard first drop, use second drop, apply to strip, and compare the result with the control range. Control Solution 0 must be within CTRL 0, 1 within CTRL 1, and 2 within CTRL 2.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Can I switch the Go-Keto meter units?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"No, the unit (mmol\/L or mg\/dL) is fixed depending on the model purchased.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Below you will find the most frequently asked questions about the Go\u2011Keto Glucose &#038; Ketone Meter. This guide explains common notifications, how to interpret your results, and how to ensure your device is working correctly.<\/p>\n","protected":false},"author":1,"featured_media":1816,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,3],"tags":[84],"class_list":["post-10790","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ketone","category-kb","tag-how-to-use-the-go-keto-meter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Frequently Asked Questions (FAQ) | Swiss Point of Care<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.swisspointofcare.com\/en\/kb\/frequently-asked-questions-faq-3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Frequently Asked Questions (FAQ)\" \/>\n<meta property=\"og:description\" content=\"Below you will find the most frequently asked questions about the Go\u2011Keto Glucose &amp; Ketone Meter. 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