What did the analysis show?<\/h2>\n
Vitamin K1 (phylloquinone) level \u2014 0.08 ng\/ml<\/strong>, that below the lower limit of normal<\/strong>. Additionally, it turned out that Anna does not eat green vegetables and has been taking a tetracycline antibiotic for several months after chronic sinusitis.<\/p>\n Vitamin K is key for synthesis of blood clotting factors<\/strong>. Its deficiency may remain unnoticed for years<\/strong>, but with a combination of diet, medication, and gut condition leads to bleeding and the threat of hemorrhage<\/strong>.<\/p>\n Vitamin K1<\/strong> comes with green vegetables (spinach, broccoli, lettuce).<\/p>\n<\/li>\n Vitamin K2<\/strong> (menaquinone) is produced by bacteria in the intestine.<\/p>\n<\/li>\n He does not accumulate in large quantities<\/strong>, therefore, deficiency develops rapidly when absorption or synthesis is impaired.<\/p>\n<\/li>\n<\/ul>\n People on high-fat diets or poor nutrition<\/strong><\/p>\n<\/li>\n Patients with pathology of the liver, biliary tract<\/strong><\/p>\n<\/li>\n Those who accept antibiotics for more than 10 days<\/strong><\/p>\n<\/li>\n People who use anticoagulants (e.g., warfarin)<\/strong><\/p>\n<\/li>\n Newborns<\/strong>, who were not given vitamin K prophylactically<\/p>\n<\/li>\n<\/ul>\n Analysis requires venous blood sampling<\/a> on an empty stomach<\/strong>. It is advisable to combine it with coagulogram<\/strong> <\/a>or INR<\/strong><\/a>, to assess the functional impact of the deficit.<\/p>\n Normal values of phylloquinone (vitamin K1):<\/strong> Enter dietary changes<\/strong> \u2014 eat more broccoli, spinach, cabbage, soy, parsley.<\/p>\n<\/li>\n Avoid excessive use of antibiotics<\/strong>, especially without probiotics.<\/p>\n<\/li>\n If necessary - prescribing vitamin K in the form of a drug or complex<\/strong>.<\/p>\n<\/li>\n If you are taking anticoagulants \u2014 do not change your diet abruptly without consulting your doctor<\/strong>.<\/p>\n<\/li>\n<\/ul>\n \u201cWe often underestimate the role of vitamin K. Unlike iron or vitamin D, its deficiency does not have classic symptoms, but it increases the risk unexpected bleeding<\/strong>, especially in patients with chronic liver disease or on long-term treatment. This is a marker that should be paid attention to even in a routine examination.\u201d<\/p>\n<\/blockquote>\n After correcting the diet and prescribing vitamin K1 (10 mg\/week), the level stabilized after just 2 weeks. The bruises disappeared, blood clotting normalized.<\/strong>, and the doctor advised to repeat the control in 3 months - in dynamics.<\/p>","protected":false},"excerpt":{"rendered":" Case: Bruises for no reason Anna, 43 years old, went to the doctor complaining of frequent bruises on her legs and arms, which<\/p>","protected":false},"author":627,"featured_media":9950,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zahvoryuvannya-ta-symptomy"],"_links":{"self":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/9949","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=9949"}],"version-history":[{"count":1,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/9949\/revisions"}],"predecessor-version":[{"id":13892,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/posts\/9949\/revisions\/13892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media\/9950"}],"wp:attachment":[{"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/media?parent=9949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/categories?post=9949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/medilab.km.ua\/en\/wp-json\/wp\/v2\/tags?post=9949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What does this mean?<\/h2>\n
What do you need to know about vitamin K?<\/h2>\n
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![\"greens](\"https:\/\/medilab.km.ua\/wp-content\/uploads\/2025\/06\/K-vitamini.jpg\")
<\/p>\nWho is most at risk of having a deficiency?<\/h2>\n
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How to check the level?<\/h2>\n
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Adults \u2014 0.1\u20132.2 ng\/ml<\/strong>
Newborns \u2014 <0.1 (without prophylaxis \u2014 always reduced)<\/p>\n<\/blockquote>\nWhat to do if the level is low?<\/h2>\n
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Doctor's comment<\/h2>\n
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How is Anna doing?<\/h2>\n