{"id":3438,"date":"2021-03-12T08:15:51","date_gmt":"2021-03-12T06:15:51","guid":{"rendered":"https:\/\/medilab.km.ua\/?post_type=product&#038;p=3438"},"modified":"2026-07-25T08:08:20","modified_gmt":"2026-07-25T05:08:20","slug":"vitamin-d-25oh-vitamin-d-total-d2-d3","status":"publish","type":"product","link":"https:\/\/medilab.km.ua\/en\/analysis\/biochemical-blood-tests\/vitamins\/vitamin-d-25oh-vitamin-d-total-d2-d3\/","title":{"rendered":"Vitamin D (25OH Vitamin D total (D2+D3))"},"content":{"rendered":"<h2>About the analysis: Vitamin D (25OH Vitamin D total)<\/h2>\n<p><b>25-hydroxyvitamin D (25(OH)D)<\/b> is the main form of vitamin D circulating in the blood and the most accurate indicator of its total body stores. Vitamin D acts as a prohormone and plays a crucial role in the absorption of calcium, phosphorus and magnesium, ensuring strong bones and teeth, as well as supporting the immune and cardiovascular systems.<\/p>\n<p>There are two main forms of vitamin D that enter the body:<\/p>\n<ul>\n<li><b>D3 (cholecalciferol):<\/b> It is synthesized in the skin when exposed to ultraviolet (UV) sunlight and also comes from fatty fish, eggs, and butter.<\/li>\n<li><b>D2 (ergocalciferol):<\/b> comes mainly from plant-based foods and specific supplements.<\/li>\n<\/ul>\n<p>This analysis determines <b>total concentration (D2 + D3)<\/b>, which allows you to get a complete and objective picture of vitamin status.<\/p>\n<hr \/>\n<h3>Vitamin D norm and interpretation of results*<\/h3>\n<p>The level of 25(OH)D in the blood is measured in ng\/ml (or nmol\/l). The interpretation of the indicators is carried out according to international and Ukrainian clinical recommendations:<\/p>\n<ul>\n<li><b>&lt; 20 ng\/mL (&lt; 50 nmol\/L)<\/b> \u2014 Deficiency (requires correction under the supervision of a doctor)<\/li>\n<li><b>20\u201329 ng\/mL (50\u201374 nmol\/L)<\/b> \u2014 Insufficiency<\/li>\n<li><b>30\u201350 ng\/mL (75\u2013125 nmol\/L)<\/b> \u2014 Optimal (sufficient) level<\/li>\n<li><b>50\u2013100 ng\/mL (125\u2013250 nmol\/L)<\/b> \u2014 Safe higher level<\/li>\n<li><b>&gt; 100 ng\/mL (&gt; 250 nmol\/L)<\/b> \u2014 Excess\/risk of toxic effects (hypervitaminosis)<\/li>\n<\/ul>\n<p><small><i>*According to the Consensus of Ukrainian experts on the diagnosis and treatment of vitamin D deficiency.<\/i><\/small><\/p>\n<hr \/>\n<h3>Who is recommended to take the test and when?<\/h3>\n<p><b>Main indications for the study:<\/b><\/p>\n<ul>\n<li>Frequent respiratory and viral diseases, weakened immunity.<\/li>\n<li>Pain in bones, joints, muscles, chronic fatigue and muscle weakness.<\/li>\n<li>Prevention and diagnosis of osteoporosis, osteomalacia and frequent fractures.<\/li>\n<li>Short-term exposure to the sun, use of sunscreens, autumn-winter period.<\/li>\n<li>For people over 60 years of age, pregnant women and women in menopause.<\/li>\n<li>Individuals with excess body weight (BMI \u2265 30) or gastrointestinal diseases (malabsorption).<\/li>\n<li>Dosage control when taking vitamin D medications and supplements.<\/li>\n<\/ul>\n<hr \/>\n<h3>Rules for preparing for blood donation<\/h3>\n<ul>\n<li>Blood is donated strictly <b>on an empty stomach<\/b> in the morning (after 8\u201312 hours of overnight fasting). It is allowed to drink pure, still water.<\/li>\n<li>24 hours before the analysis, avoid alcohol, fatty foods, and intense physical activity.<\/li>\n<li>Refrain from smoking for 1\u20132 hours.<\/li>\n<li>In consultation with your doctor, it is recommended to stop taking vitamin D supplements a few days before the test (unless the purpose is to monitor current intake).<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p><b>25-hydroxyvitamin D (25(OH)D)<\/b> \u2014 the main biochemical marker for assessing the body&#039;s vitamin D status (total D2 + D3). The study is necessary to monitor bone health, immune function, and the cardiovascular system.<\/p>\n<ul>\n<li><b>Biomaterial:<\/b> venous blood<\/li>\n<li><b>Deadline:<\/b> 1 calendar day<\/li>\n<li><b>Preparation:<\/b> fasting (8\u201312 hours of fasting)<\/li>\n<\/ul>","protected":false},"featured_media":5908,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[83,68],"product_tag":[],"class_list":["post-3438","product","type-product","status-publish","has-post-thumbnail","product_cat-vitaminy","product_cat-biohimichni-doslidzhennya-krovi","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/product\/3438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/comments?post=3438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media\/5908"}],"wp:attachment":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media?parent=3438"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/product_brand?post=3438"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/product_cat?post=3438"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/product_tag?post=3438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}