What should your vitamin K level be?
The reference range of vitamin K is 0.2-3.2 ng/mL, but impaired blood clotting has been associated with levels below 0.5 ng/mL by one source. Another source cites a reference range of 0.10-2.2 ng/mL.
What causes vitamin K deficiencies?
Vitamin K deficiency can contribute to significant bleeding, poor bone development, osteoporosis, and increased risk of cardiovascular disease.
Why vitamin K test is done?
Vitamin K Tests They are not typically used to screen for or help diagnose vitamin K deficiencies because a lack of vitamin K is usually discovered when unexpected or excessive bleeding or easy bruising occurs. The primary test used to investigate the bleeding is a prothrombin time (PT).
What are the cons of vitamin K?
Vitamin K injection The major disadvantage is that it’s invasive and can cause pain and a small bruise where the injection was given (Puckett and Offringa, 2000).
Is vitamin K given for bleeding?
Vitamin K is used to prevent and treat certain blood clotting (coagulation) issues. It’s also used to prevent severe bleeding (hemorrhagic disease) in newborns. Vitamin K may be used in cases of ongoing IV feeding. It may also be used when antibiotics have killed bacteria in the intestines that make vitamin K.
What happens if you have too much vitamin K?
The effects of vitamin K toxicity can include jaundice in newborns, hemolytic anemia, and hyperbilirubinemia. Toxicity also blocks the effects of oral anticoagulants.
How much vitamin K is too much?
If you take vitamin K supplements, do not take too much as this might be harmful. Taking 1mg or less of vitamin K supplements a day is unlikely to cause any harm.
What are signs of vitamin K deficiency?
The main symptom of vitamin K deficiency is bleeding (hemorrhage)—into the skin (causing bruises), from the nose, from a wound, in the stomach, or in the intestine. Sometimes bleeding in the stomach causes vomiting with blood. Blood may be seen in the urine or stool, or stools may be tarry black.
Who is most at risk for vitamin K deficiency?
Why are babies more likely to have vitamin K deficiency and to get VKDB? All infants, regardless of sex, race, or ethnic background, are at higher risk for VKDB until they start eating regular foods, usually at age 4-6 months, and until the normal intestinal bacteria start making vitamin K.
What happens if your vitamin K is too high?
What is vitamin K made from?
Vitamin K is a fat-soluble vitamin that comes in two forms. The main type is called phylloquinone, found in green leafy vegetables like collard greens, kale, and spinach. The other type, menaquinones, are found in some animal foods and fermented foods. Menaquinones can also be produced by bacteria in the human body. 
What is the AI for vitamin K?
AI: An “adequate intake” (AI) is used when there is not enough evidence to establish a Recommended Dietary Allowance (RDA). The AI amount is estimated to ensure nutritional adequacy. For adults 19 years and older, the AI for vitamin K is 120 micrograms (mcg) daily for men and 90 mcg for women and for those who are pregnant or lactating.
Is there a health claim for vitamin K?
The European Food Safety Authority has approved a health claim for vitamin K, noting that “a cause and effect relationship has been established between the dietary intake of vitamin K and the maintenance of normal bone” . The FDA has not authorized a health claim for vitamin K in the United States.
What is the Recommended Dietary Allowance (DV) for vitamin K?
The U.S. Food and Drug Administration (FDA) developed DVs to help consumers compare the nutrient contents of foods and dietary supplements within the context of a total diet. The DV for vitamin K is 120 mcg for adults and children age 4 years and older [ 17 ].