{"id":194969,"date":"2022-02-11T08:26:29","date_gmt":"2022-02-11T06:26:29","guid":{"rendered":"https:\/\/medicare-group.hu\/laboratory-tests\/laboratory-tests-type\/vitamins-minerals-trace-elements\/vitamin-d3-125-oh-d3\/"},"modified":"2025-02-19T14:14:57","modified_gmt":"2025-02-19T12:14:57","slug":"vitamin-d3","status":"publish","type":"page","link":"https:\/\/medicare-group.hu\/en\/laboratory-tests\/laboratory-tests-type\/vitamins-minerals-trace-elements\/vitamin-d3\/","title":{"rendered":"Vitamin D3 (1,25-OH D3)"},"content":{"rendered":"<div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h1 style=\"text-align: left\" class=\"vc_custom_heading\" >Vitamin D3 (1,25-OH D3)<\/h1><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">Vitamin D3 (colecalciferol) is a type of vitamin D, a hormone-like precursor. It derived from 7-dehydrocholesterol \u00a0which is produced by the skin, affected by UV-B radiation from sunlight.<\/p>\n<p style=\"text-align: justify;\">Vitamin D plays an important role in many physiological processes, it is essential for bone formation and bone metabolism, it regulates calcium metabolism, and affects the functioning of the immune system. Through its effect on cellular metabolism, vitamin D3 supports the prevention of certain cancers.<\/p>\n<p style=\"text-align: justify;\">Optimal levels of vitamin D cannot be provided from food, but by spending some time in sunlight. Necessary UV-B radiation can be provided between March and October with 15 minutes of direct sunlight reaching the face and exposed arms. Winter, early spring, and late autumn sun exposure is not enough to produce the right amount of vitamin D3, during this period it is recommended to supplement vitamin D with dietary supplements. The UV-A radiation in the solarium is not suitable for the formation of vitamin D3.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: left\" class=\"vc_custom_heading\" >What does the test show?<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">The active vitamin D3 (1.25 OH D3, calcitriol), produced in the kidneys, regulates calcium metabolism, which provides information about the absorption of calcium and phosphorus in the body. This also indirectly refers to the body\u2019s supply of vitamin D.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: left\" class=\"vc_custom_heading\" >In what cases is it recommended to do the test?<\/h2><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"D3 vitamin\" srcset=\"https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1.jpg 700w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-300x300.jpg 300w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-150x150.jpg 150w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-12x12.jpg 12w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-370x370.jpg 370w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-120x120.jpg 120w, https:\/\/medicare-group.hu\/wp-content\/uploads\/2022\/02\/d3_vitamin-1-410x410.jpg 410w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">The test is recommended primarily in case of suspicion of vitamin D deficiency. The following cases can cause vitamin D deficiency in the body:<\/p>\n<ul style=\"text-align: justify;\">\n<li>one-sided or decreased nutrition<\/li>\n<li>liver disease<\/li>\n<li><a href=\"https:\/\/medicare-group.hu\/en\/laboratory-tests\/laboratory-test-packages\/malabsorption-laboratory-test\/\">absorption disorders<\/a><\/li>\n<li>renal insufficiency<\/li>\n<li>taking antiepileptic drugs<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">In case of the above factors, the following symptoms may indicate a vitamin D deficiency:<\/p>\n<ul>\n<li style=\"text-align: justify;\">recurrent infections due to the weakness of the immune system<\/li>\n<li style=\"text-align: justify;\">fatigue, exhaustion<\/li>\n<li style=\"text-align: justify;\">slowed metabolism<\/li>\n<li style=\"text-align: justify;\">depression<\/li>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/medicare-group.hu\/en\/laboratory-tests\/laboratory-test-packages\/bone-metabolism-laboratory-package\/\">frequent bone fractures<\/a> (osteomalacia, the softening of the bones)<\/li>\n<li style=\"text-align: justify;\">muscle, bone and joint pain<\/li>\n<li style=\"text-align: justify;\">muscle cramp<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: left\" class=\"vc_custom_heading\" >What kind of sample is needed for the test?<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>A blood sample, taken from a vein, is needed to perform the test.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: left\" class=\"vc_custom_heading\" >What could the result indicate?<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">A value below the normal range indicates a lack of vitamin D3, as well as an inadequate calcium metabolism in the body. Calcium deficiency, caused by the lack of vitamin D, leads to bone loss, in severe cases, the structure of the bones change. It may also contribute to certain autoimmune diseases. The following diseases may cause lower values: osteoporosis, chronic renal insufficiency, nephrotic syndrome, hyperthyroidism, rachitis, tumor-induced osteomalacia, hypercalcemia not caused by parathyroid hyperfunction.<\/p>\n<p style=\"text-align: justify;\">If the test shows a higher value than the normal range, there is D-hypervitaminosis, which also indicates high levels of calcium in the blood. It can also cause nausea, dehydration and constipation. Very rarely, in case of significant overdose, vitamin D poisoning may also occur. The following conditions or diseases may also cause elevated values: pregnancy, sarcoidosis, TB, lymphoma, tumor calcinosis, hypothyroidism, hyperparathyroidism, vitamin D treatment.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid shape_divider_top-none shape_divider_bottom-none\"><div class=\"wpb_column vc_column_container vc_col-sm-12 sc_layouts_column_icons_position_left\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: left\" class=\"vc_custom_heading\" >What to do after the test?<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: justify;\">The result does not constitute a diagnosis in itself, therefore always consult your doctor or the specialist who ordered the examination to set the diagnosis and determine the necessary treatment.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"Vitamin D3 (1,25-OH D3) Vitamin D3 (colecalciferol) is a type of vitamin D, a hormone-like precursor. It derived from 7-dehydrocholesterol \u00a0which is produced by the skin, affected by UV-B radiation&hellip;","protected":false},"author":1,"featured_media":0,"parent":191708,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-194969","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Vitamin D3 (1,25-OH D3) - Medicare<\/title>\n<meta name=\"description\" content=\"Active vitamin D3 regulates calcium metabolism, which provides information about the absorption of calcium and phosphorus in the body.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/medicare-group.hu\/en\/laboratory-tests\/laboratory-tests-type\/vitamins-minerals-trace-elements\/vitamin-d3\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vitamin D3 (1,25-OH D3) - 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