Vitamin K Flashcards
Anti-hemorrhagic vitamin
Vitamin K
Vitamin K that is synthesized by green plants ; converted to K2
Phylloquinones (K1 series)
Vitamin K that is synthesized by the intestinal bacteria
Menaquinones (K2 series
Vitamin K that is twice as potent; metabolized more rapidly
Menadione (synthetic)
SOURCES OF VITAMIN K
High amounts in green leafy vegetables (broccoli, cabbage, turnip greens and dark lettuces)
Poor source of Vitamin K
Low in breastmilk
antagonizes the role of vitamin K
Anticoagulant drugs
Reduce vitamin K synthesis
Sulfa drugs and antibiotic
May destroy vitamin K
Light, oxidizing agents, acids, and alkalis
Is Vitamin K is heat-stable?
True or false
TRUE
Functions of Vitamin K
- Essential for the synthesis of several proteins involved in blood clotting
- Needed for the synthesis of proteins involved in regulating bone growth and cell growth
requires vit K for its maturation
Osteocalcin
is vitamin K easily destroyed by light?
True or false?
TRUE
Rare Vitamin K Deficiency
lipid malabsorption,
chronic antibiotic therapy
liver disease
Vitamin K Deficiency in newborn due to hypoprothrombinemia; could lead to fatal anemia
hemorrhagic disease