{"id":4154,"date":"2021-07-10T19:46:55","date_gmt":"2021-07-10T16:46:55","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=4154"},"modified":"2026-06-04T22:13:34","modified_gmt":"2026-06-04T19:13:34","slug":"the-study-will-depend-on-the-quality-of-the-laboratory-work","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/the-study-will-depend-on-the-quality-of-the-laboratory-work\/","title":{"rendered":"Why do test results vary between laboratories? Reasons and accuracy factors"},"content":{"rendered":"<p data-path-to-node=\"3\">Each of us undergoes laboratory tests for different reasons. However, patients often wonder, <b data-path-to-node=\"9,1,1,0\" data-index-in-node=\"92\">Why do test results differ?<\/b>, if they are taken at different medical institutions within a short period of time.<\/p>\n<p data-path-to-node=\"4\">However, patients often encounter a situation that causes concern: they donated blood in one place, and a few days later they donated it again in another - and the numbers on the forms are completely different. Why does this happen? Does this mean that some laboratory made a mistake?<\/p>\n<p data-path-to-node=\"5\">In fact, the difference in numbers is a natural medical and technical process. Together with medical laboratory experts <b data-path-to-node=\"5\" data-index-in-node=\"112\">\u00ab&quot;Medi Lab Plus&quot;\u00bb<\/b> We understand what the results of your research depend on.<\/p>\n<h2 data-path-to-node=\"7\">1. Various techniques, equipment and test systems<\/h2>\n<p data-path-to-node=\"8\">Modern laboratory diagnostics is a high-tech process. Different laboratories analyze biomaterial using different technologies:<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">Global equipment brands:<\/b> Laboratories purchase automated analyzers and test systems from various leading manufacturers (e.g. Roche, Abbott, Siemens, or Sysmex). Each device has its own calibration and sensitivity to reagents.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Various chemical methods:<\/b> The same indicator (for example, a hormone or vitamin) can be measured by several medical methods (IHCLA, ELISA, etc.). Each method has its own diameter for detecting molecules, so the final numbers may fluctuate.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"11\">2. The secret of the \u00abnorm\u00bb: different reference values and units of measurement<\/h2>\n<p data-path-to-node=\"12\">The most important mistake patients make is to compare only dry numbers from different blank results. <b data-path-to-node=\"12\" data-index-in-node=\"93\">You can only compare deviations from the norm of the laboratory where you took the test.<\/b><\/p>\n<blockquote data-path-to-node=\"13\">\n<p data-path-to-node=\"13,0\">\ud83d\udca1 <b data-path-to-node=\"13,0\" data-index-in-node=\"3\">Example:<\/b> In one test system, the norm of an indicator may be measured on a scale from 0 to 10, and in another - from 100 to 500. In addition, laboratories may use different units of measurement: for example, mmol\/L, ng\/mL, or \u03bcmol\/L.<\/p>\n<\/blockquote>\n<p data-path-to-node=\"14\">Each test system manufacturer prescribes its own <b data-path-to-node=\"14\" data-index-in-node=\"43\">reference values (norms)<\/b>, which are individual for a particular device and chemical reagent. Therefore, comparing results from different laboratories &quot;head to head&quot; is medically incorrect.<\/p>\n<h2 data-path-to-node=\"16\">3. Preanalytical stage: how patient behavior changes blood<\/h2>\n<p data-path-to-node=\"17\">According to statistics, more than 60% of all discrepancies in analyses occur <b data-path-to-node=\"17\" data-index-in-node=\"67\">before that<\/b>, as the test tube enters the analyzer. The composition of our blood is influenced by many factors every minute:<\/p>\n<ul data-path-to-node=\"18\">\n<li>\n<p data-path-to-node=\"18,0,0\"><b data-path-to-node=\"18,0,0\" data-index-in-node=\"0\"><a href=\"https:\/\/medilab.km.ua\/en\/the-impact-of-the-virus-on-the-results-of-the-analysis-and-the-consequences-of-the-virus-on-the-data\/\">Food and drinks<\/a>: Did you take the test on an empty stomach or after a light coffee? Coffee, tea, and even the smallest snack trigger biochemical processes that instantly change the levels of glucose, cholesterol, and some hormones.<\/b><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,1,0\"><b data-path-to-node=\"18,1,0\" data-index-in-node=\"0\">Stress and physical activity:<\/b> If you ran to the lab, were nervous on the way, or walked upstairs, the levels of cortisol, prolactin, and leukocytes in your blood are guaranteed to jump.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"18,2,0\"><b data-path-to-node=\"18,2,0\" data-index-in-node=\"0\">Time of day:<\/b> The levels of many hormones (such as iron, TSH, or cortisol) differ significantly in the morning, afternoon, and evening due to the body&#039;s natural biorhythms.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"20\">How does Medi Lab Plus ensure impeccable accuracy of research?<\/h2>\n<p data-path-to-node=\"21\">Medical laboratory <b data-path-to-node=\"21\" data-index-in-node=\"20\">\u00ab&quot;Medi Lab Plus&quot;\u00bb<\/b> built on the principles of European quality standards, where the human factor is minimized:<\/p>\n<ol start=\"1\" data-path-to-node=\"22\">\n<li>\n<p data-path-to-node=\"22,0,0\"><b data-path-to-node=\"22,0,0\" data-index-in-node=\"0\">Full process automation:<\/b> All analyses are performed on modern automatic analyzers. This completely eliminates even the slightest random deviations or errors during manual calculations.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,1,0\"><b data-path-to-node=\"22,1,0\" data-index-in-node=\"0\">Flexible reference values:<\/b> We offer clear guidelines broken down by age group, gender and specific conditions (e.g. pregnancy trimesters). This allows your <a href=\"https:\/\/medilab.km.ua\/en\/ulyana-anatoliyivna-dzyuba-doctor-of-clinical-laboratory-diagnostics-clinical-biochemistry-and-immunology-in-khmelnytskyi\/\">to the doctor<\/a> to see the most accurate and realistic clinical picture.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,2,0\"><b data-path-to-node=\"22,2,0\" data-index-in-node=\"0\">International quality control:<\/b> Our work and equipment accuracy are regularly confirmed by rigorous national and international audits and external quality assessment programs.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,3,0\"><b data-path-to-node=\"22,3,0\" data-index-in-node=\"0\">A unique service \u2014 serum storage:<\/b> We store patients&#039; blood serum in special conditions for a certain period of time. If your doctor decides to order additional tests, you will not have to go through the blood collection procedure again and come to the laboratory in person.<\/p>\n<\/li>\n<\/ol>\n<p data-path-to-node=\"23\">We care about your health, value your peace of mind, and unconditionally care about our reputation!<\/p>\n<h3 data-path-to-node=\"25\">\ud83d\udcde Contacts for information and booking:<\/h3>\n<ul data-path-to-node=\"26\">\n<li>\n<p data-path-to-node=\"26,0,0\"><b data-path-to-node=\"26,0,0\" data-index-in-node=\"0\">Phone:<\/b> (067) 313 06 65, (0382) 72 99 09<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"26,1,0\"><b data-path-to-node=\"26,1,0\" data-index-in-node=\"0\">Address of the main laboratory center:<\/b> Khmelnytskyi, Kamyanets&#039;ka St., 106<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u041a\u043e\u0436\u0435\u043d \u0456\u0437 \u043d\u0430\u0441 \u0437\u0434\u0430\u0454 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u043d\u0456 \u043e\u0431\u0441\u0442\u0435\u0436\u0435\u043d\u043d\u044f \u0437 \u0440\u0456\u0437\u043d\u0438\u0445 \u043f\u0440\u0438\u0447\u0438\u043d. \u041f\u0440\u043e\u0442\u0435 \u043f\u0430\u0446\u0456\u0454\u043d\u0442\u0438 \u0447\u0430\u0441\u0442\u043e \u0446\u0456\u043a\u0430\u0432\u043b\u044f\u0442\u044c\u0441\u044f, \u0447\u043e\u043c\u0443 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0438 \u0430\u043d\u0430\u043b\u0456\u0437\u0456\u0432 \u0432\u0456\u0434\u0440\u0456\u0437\u043d\u044f\u044e\u0442\u044c\u0441\u044f, \u044f\u043a\u0449\u043e \u0437\u0434\u0430\u0442\u0438 \u0457\u0445<\/p>","protected":false},"author":1,"featured_media":4155,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/4154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/comments?post=4154"}],"version-history":[{"count":0,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/4154\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media\/4155"}],"wp:attachment":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media?parent=4154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/categories?post=4154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/tags?post=4154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}