vit K Menaquinone Flashcards

(9 cards)

1
Q

What is K1 and its primary function?

A

Phyloquinone from plants is for blood clotting

K1 is essential for the formation of prothrombin, which is crucial for blood clotting.

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2
Q

What is K2 and how does it differ from K1?

A

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.

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3
Q

What is K3 and its potential risk?

A

K3 is hydroquinone and menadione, which is synthetic and can cause liver damage

K3 is not typically recommended due to its potential toxicity.

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4
Q

List some sources of Vitamin K.

A
  • Leafy greens
  • Coriander
  • Blackberries
  • Broccoli
  • Kale
  • Asparagus
  • Prunes

These foods are rich in Vitamin K, contributing to dietary intake.

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5
Q

What are the functions of Vitamin K?

A
  • Blood clotting
  • Bone metabolism and health
  • Brain/nerve function
  • Integrity of blood vessel walls

Vitamin K is essential for maintaining various physiological functions.

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6
Q

What role does Vitamin K play in sulfur metabolism?

A

Supports sulfur metabolism, needed for the activation of prothrombin

Prothrombin is a key protein in the blood coagulation process.

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7
Q

What effect does long-term antibiotic use have on Vitamin K levels?

A

Reduces levels

Antibiotics can disrupt gut bacteria that synthesize K2, leading to deficiencies.

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8
Q

What should not be given to patients taking anticoagulants?

A

Warfarin

Warfarin is an anticoagulant that can interact with Vitamin K, affecting its efficacy.

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9
Q

What are symptoms of Vitamin K deficiency?

A
  • 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.

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