{"id":8827,"date":"2025-03-19T07:47:58","date_gmt":"2025-03-19T05:47:58","guid":{"rendered":"https:\/\/medilab.km.ua\/?p=8827"},"modified":"2026-06-18T18:03:18","modified_gmt":"2026-06-18T15:03:18","slug":"how-to-prepare-for-blood-biochemistry-to-get-accurate-results-the-first-time","status":"publish","type":"post","link":"https:\/\/medilab.km.ua\/en\/how-to-prepare-for-blood-biochemistry-to-get-accurate-results-the-first-time\/","title":{"rendered":"Preparing for blood biochemistry: how to get accurate results the first time"},"content":{"rendered":"<p class=\"\" data-start=\"321\" data-end=\"686\">Do you have a blood test coming up? It seems like nothing complicated: you come, you pass, you leave. But in the morning before the procedure, the question arises: &quot;Can I have water?&quot;, &quot;Can I have at least a sip of coffee?&quot;, &quot;What if I only ate an apple last night - is that normal?&quot; All this matters, especially when it comes to <a href=\"https:\/\/medilab.km.ua\/en\/price\/?3325_product_cat%5B0%5D=68&amp;3325_device=laptop&amp;3325_filtered=true\"><strong data-start=\"601\" data-end=\"629\">biochemical blood test<\/strong> <\/a>\u2014 one of the most accurate and at the same time most sensitive tests.<\/p>\n<p class=\"\" data-start=\"688\" data-end=\"957\">The accuracy of biochemistry directly depends on how responsibly you approach the preparation. An improper breakfast or evening fast food can not only &quot;spoil the numbers&quot;, but also lead to a false diagnosis or unnecessary examinations. To avoid this, read on.<\/p>\n<h3 class=\"\" data-start=\"959\" data-end=\"1005\"><strong>Why is a biochemical blood test needed?<\/strong><\/h3>\n<p class=\"\" data-start=\"1007\" data-end=\"1095\">Biochemistry gives the doctor a detailed picture of the state of internal organs and systems. It allows:<\/p>\n<ul data-start=\"1097\" data-end=\"1416\">\n<li class=\"\" data-start=\"1097\" data-end=\"1152\">\n<p class=\"\" data-start=\"1099\" data-end=\"1152\">check the work <strong data-start=\"1117\" data-end=\"1128\">liver<\/strong> (ALT, AST, bilirubin)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1153\" data-end=\"1204\">\n<p class=\"\" data-start=\"1155\" data-end=\"1204\">evaluate the function <strong data-start=\"1171\" data-end=\"1180\">kidneys<\/strong> (creatinine, urea)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1205\" data-end=\"1279\">\n<p class=\"\" data-start=\"1207\" data-end=\"1279\">learn about <strong data-start=\"1221\" data-end=\"1250\">glucose and lipid levels<\/strong> (cholesterol, triglycerides)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1280\" data-end=\"1352\">\n<p class=\"\" data-start=\"1282\" data-end=\"1352\">reveal <strong data-start=\"1290\" data-end=\"1303\">inflammation<\/strong>, <strong data-start=\"1305\" data-end=\"1320\">dehydration<\/strong>, <strong data-start=\"1322\" data-end=\"1350\">metabolic disorder<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"1353\" data-end=\"1416\">\n<p class=\"\" data-start=\"1355\" data-end=\"1416\">monitor chronic diseases or treatment effectiveness<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"1418\" data-end=\"1573\">This analysis is included in most preventive programs and is indispensable in therapeutic, endocrinological, gastroenterological and cardiological practice.<\/p>\n<h3 class=\"\" data-start=\"1575\" data-end=\"1602\"><strong>Why preparation is important<\/strong><\/h3>\n<p class=\"\" data-start=\"1604\" data-end=\"1906\">A biochemical blood test is a &quot;snapshot&quot; of your metabolism. And, like a camera, it all depends on the lighting conditions, angle, and focus. If you ate a cake in the evening or drank coffee in the morning, your body may still be reacting to it at the time of blood donation. And instead of an accurate <a href=\"https:\/\/medilab.km.ua\/en\/how-to-get-results\/\" title=\"How to get results\"  data-wpil-monitor-id=\"419\">result<\/a> you will get the changed numbers.<\/p>\n<p class=\"\" data-start=\"1908\" data-end=\"2136\"><strong data-start=\"1908\" data-end=\"1954\">Quote from endocrinologist Oleksandr Vasylenko:<\/strong><br data-start=\"1954\" data-end=\"1957\" \/><em data-start=\"1957\" data-end=\"2136\">\u00ab&quot;Sometimes, drinking a glass of juice or taking vitamins in the morning is enough to mess up a glucose or lipid profile. It seems like a small thing, but every detail is important for diagnosis.&quot;.<\/em><\/p>\n<p data-start=\"1908\" data-end=\"2136\"><img decoding=\"async\" class=\"alignnone size-full wp-image-8829\" src=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main.jpg\" alt=\"Infographics about factors that influence results\" width=\"1131\" height=\"354\" srcset=\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main.jpg 1131w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main-150x47.jpg 150w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main-600x188.jpg 600w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main-300x94.jpg 300w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main-1024x321.jpg 1024w, https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/03\/obshhij-analiz-krovi-main-768x240.jpg 768w\" sizes=\"(max-width: 1131px) 100vw, 1131px\" \/><\/p>\n<h3 class=\"\" data-start=\"2138\" data-end=\"2180\"><strong>Basic rules for preparing for biochemistry<\/strong><\/h3>\n<ul data-start=\"2182\" data-end=\"2957\">\n<li class=\"\" data-start=\"2182\" data-end=\"2293\">\n<p class=\"\" data-start=\"2184\" data-end=\"2293\"><strong data-start=\"2184\" data-end=\"2217\">Don&#039;t eat for at least 8\u201312 hours<\/strong> before the test. The last meal is a light dinner, no later than 7:00\u20138:00 p.m.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2294\" data-end=\"2374\">\n<p class=\"\" data-start=\"2296\" data-end=\"2374\"><strong data-start=\"2296\" data-end=\"2316\">Water is allowed.<\/strong>, but only pure, non-carbonated. No more than 1 glass in the morning.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2375\" data-end=\"2487\">\n<p class=\"\" data-start=\"2377\" data-end=\"2487\"><strong data-start=\"2377\" data-end=\"2403\">Alcohol is prohibited.<\/strong> in 24\u201348 hours. It affects liver function, triglyceride levels, and enzymes.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2488\" data-end=\"2588\">\n<p class=\"\" data-start=\"2490\" data-end=\"2588\"><strong data-start=\"2490\" data-end=\"2519\">Physical activity \u2014 no<\/strong>. Do not go for the test after a gym or an active run.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2589\" data-end=\"2696\">\n<p class=\"\" data-start=\"2591\" data-end=\"2696\"><strong data-start=\"2591\" data-end=\"2602\">Smoking<\/strong> can distort glucose, hormone, and lipid levels \u2014 do not smoke 1\u20132 hours before the procedure.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2697\" data-end=\"2806\">\n<p class=\"\" data-start=\"2699\" data-end=\"2806\"><strong data-start=\"2699\" data-end=\"2747\">Coffee, tea, juices, chewing gum are prohibited.<\/strong>. They trigger metabolic processes even before blood is drawn.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2807\" data-end=\"2957\">\n<p class=\"\" data-start=\"2809\" data-end=\"2957\">If you are taking medication \u2014 <strong data-start=\"2841\" data-end=\"2873\">be sure to tell the doctor<\/strong>. Some medications need to be discontinued the day before, while others require testing before taking them.<\/p>\n<\/li>\n<\/ul>\n<h3 class=\"\" data-start=\"2959\" data-end=\"3010\"><strong>Table: What can affect the biochemistry result<\/strong><\/h3>\n<div class=\"overflow-x-auto contain-inline-size\">\n<div class=\"table-scroll\"><table data-start=\"3012\" data-end=\"3697\">\n<thead data-start=\"3012\" data-end=\"3087\">\n<tr data-start=\"3012\" data-end=\"3087\">\n<th data-start=\"3012\" data-end=\"3037\">Indicator<\/th>\n<th data-start=\"3037\" data-end=\"3064\">Influence of external factors<\/th>\n<th data-start=\"3064\" data-end=\"3087\">How to avoid error<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"3165\" data-end=\"3697\">\n<tr data-start=\"3165\" data-end=\"3252\">\n<td>Glucose<\/td>\n<td>Stress, food, lack of sleep<\/td>\n<td>On an empty stomach, calm, good sleep<\/td>\n<\/tr>\n<tr data-start=\"3253\" data-end=\"3335\">\n<td>Cholesterol<\/td>\n<td>Fatty food, alcohol<\/td>\n<td>Diet 2 days before the analysis<\/td>\n<\/tr>\n<tr data-start=\"3336\" data-end=\"3445\">\n<td>ALT, AST<\/td>\n<td>Alcohol, medications<\/td>\n<td>Abstain from alcohol, coordinate medication intake<\/td>\n<\/tr>\n<tr data-start=\"3446\" data-end=\"3530\">\n<td>Bilirubin<\/td>\n<td>Hunger, medications<\/td>\n<td>Do not fast for longer than 14 hours<\/td>\n<\/tr>\n<tr data-start=\"3531\" data-end=\"3611\">\n<td>Urea, creatinine<\/td>\n<td>Physical activity<\/td>\n<td>Avoid sports for 1 day<\/td>\n<\/tr>\n<tr data-start=\"3612\" data-end=\"3697\">\n<td>Total protein<\/td>\n<td>Plenty of water<\/td>\n<td>Do not drink more than 200 ml in the morning<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n<h3 class=\"\" data-start=\"3699\" data-end=\"3718\"><strong>Frequently asked questions<\/strong><\/h3>\n<p class=\"\" data-start=\"3720\" data-end=\"3844\"><strong data-start=\"3720\" data-end=\"3758\">Can I drink water before the test?<\/strong><br data-start=\"3758\" data-end=\"3761\" \/>Yes, but in moderation - no more than 1 glass, without gas and additives, 1\u20132 hours before delivery.<\/p>\n<p class=\"\" data-start=\"3846\" data-end=\"3993\"><strong data-start=\"3846\" data-end=\"3893\">Can I donate blood if I am taking medication?<\/strong><br data-start=\"3893\" data-end=\"3896\" \/>It depends on the drug. Some have no effect, others completely change the indicators. Check with your doctor.<\/p>\n<p class=\"\" data-start=\"3995\" data-end=\"4143\"><strong data-start=\"3995\" data-end=\"4028\">When is the best time to take the test?<\/strong><br data-start=\"4028\" data-end=\"4031\" \/>From 8:00 to 10:00 in the morning - this is when the reference (normal) values of most laboratory indicators are established.<\/p>\n<h3 class=\"\" data-start=\"4145\" data-end=\"4170\"><strong>What to do after delivery<\/strong><\/h3>\n<ul data-start=\"4172\" data-end=\"4482\">\n<li class=\"\" data-start=\"4172\" data-end=\"4264\">\n<p class=\"\" data-start=\"4174\" data-end=\"4264\">After the analysis, it is possible and even advisable to have breakfast - it is better to bring a sandwich or banana with you.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4265\" data-end=\"4366\">\n<p class=\"\" data-start=\"4267\" data-end=\"4366\">If you feel dizzy or weak, sit in the hallway for a few minutes or contact the staff.<\/p>\n<\/li>\n<li class=\"\" data-start=\"4367\" data-end=\"4418\">\n<p class=\"\" data-start=\"4369\" data-end=\"4418\">Results are usually ready in 1\u20132 business days<\/p>\n<\/li>\n<li class=\"\" data-start=\"4419\" data-end=\"4482\">\n<p class=\"\" data-start=\"4421\" data-end=\"4482\">Do not interpret the results yourself - consult a doctor.<\/p>\n<\/li>\n<\/ul>\n<article class=\"w-full text-token-text-primary\" dir=\"auto\" data-testid=\"conversation-turn-190\" data-scroll-anchor=\"true\">\n<div class=\"text-base my-auto mx-auto py-5 px-6\">\n<div class=\"mx-auto flex flex-1 text-base gap-4 md:gap-5 lg:gap-6 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem] group\/turn-messages focus-visible:outline-none\">\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn @xs\/thread:px-0 @sm\/thread:px-1.5 @md\/thread:px-4\">\n<div class=\"relative flex-col gap-1 md:gap-3\">\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 whitespace-normal break-words text-start [.text-message+&amp;]:mt-5\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"421d022a-f613-43e6-a708-8b4514598f17\" data-message-model-slug=\"gpt-4o\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p class=\"\" data-start=\"5247\" data-end=\"5510\">Biochemistry is not just a part of the examination. It is a moment when you can see how the body \u00abworks\u00bb from the inside. Following simple but important rules before taking the test is not a burden, but part of taking care of yourself and your doctor. The accuracy of the results starts with you.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"absolute\">\n<div class=\"flex items-center justify-center\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<div class=\"pointer-events-none h-px w-px\" aria-hidden=\"true\" data-edge=\"true\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Do you have a blood test coming up? It seems like nothing complicated: come, take it, and leave. But on the morning before the procedure, a question arises:<\/p>","protected":false},"author":627,"featured_media":8828,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8827","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rozshyfrovka-analiziv-ta-pidgotovka"],"_links":{"self":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/8827","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\/627"}],"replies":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/comments?post=8827"}],"version-history":[{"count":0,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/8827\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media\/8828"}],"wp:attachment":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media?parent=8827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/categories?post=8827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/tags?post=8827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}