vit K Menaquinone Flashcards
(9 cards)
What is K1 and its primary function?
Phyloquinone from plants is for blood clotting
K1 is essential for the formation of prothrombin, which is crucial for blood clotting.
What is K2 and how does it differ from K1?
Menaquinone from animals and bacterial synthesis in gut is more for calcium control and better absorbed
K2 plays an important role in calcium metabolism, promoting bone health.
What is K3 and its potential risk?
K3 is hydroquinone and menadione, which is synthetic and can cause liver damage
K3 is not typically recommended due to its potential toxicity.
List some sources of Vitamin K.
- Leafy greens
- Coriander
- Blackberries
- Broccoli
- Kale
- Asparagus
- Prunes
These foods are rich in Vitamin K, contributing to dietary intake.
What are the functions of Vitamin K?
- Blood clotting
- Bone metabolism and health
- Brain/nerve function
- Integrity of blood vessel walls
Vitamin K is essential for maintaining various physiological functions.
What role does Vitamin K play in sulfur metabolism?
Supports sulfur metabolism, needed for the activation of prothrombin
Prothrombin is a key protein in the blood coagulation process.
What effect does long-term antibiotic use have on Vitamin K levels?
Reduces levels
Antibiotics can disrupt gut bacteria that synthesize K2, leading to deficiencies.
What should not be given to patients taking anticoagulants?
Warfarin
Warfarin is an anticoagulant that can interact with Vitamin K, affecting its efficacy.
What are symptoms of Vitamin K deficiency?
- Excessive bleeding
- Easy bruising
- Hypothrombinemia
- Calcification of artery walls
- Arteriosclerosis
- Low bone density
- Cognitive decline
Deficiency can lead to serious health issues related to blood and bone health.