Newborns are especially prone to vitamin K deficiency
Vitamin K deficiency in adults is rare
Vitamin K is necessary for the production of Clotting Factors II, VII, IX and X. So a vitamin K deficiency could lead to a bleeding disorder. Additionally vitamin K is necessary for the production of the anticoagulant protein C and protein S. Inhibition of Vitamin K function is also associated with clotting disorders though for this to occur there has to be a deficiency in either proteins C or S.
The deficiency of Vitamin K or menaquinone.
The prognosis for correcting vitamin K deficiency, and associated blood-clotting problems, is excellent.
Scurvy is a vitamin C deficiency.
Vitamin A deficiency occurs with the chronic consumption of diets that are deficient in both vitamin A and beta-carotene.
Vitamin K deficiency in newborn infants is treated and prevented with a single injection of phylloquinone (5 mg).
Deficiency of Vitamin K
Vitamin K status is measured by the prothrombin time test
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Vitamin B6 deficiency occurs rarely. When it does, it is usually associated with poor absorption of nutrients in the gastrointestinal tract