Vitamin K

Question 1

What conditions affect Vit K absorption?

Answer 1

Similar to other fat soluble vitamins, any impairment in the lipid absorption process like biliary obstruction or significant small bowel resection decreases absorption. Absorption varies from 40 to 80% but can be reduced to 20 to 30% in the above condition. NB: Phylloquinone (Vit K1-plant form) is primarily absorbed in the jejunum.

Question 2

True/False: There is not storage form of Vit K in the body

Answer 2

True

Question 3

What conditions indicates Vit K supplementation?

Answer 3

Since IVFE can be a source of Vit K, Long-term TPN w/out fat emulsion, patients on antibiotics therapy, or NPO, or w/ significant malabsoprtion.

Question 4

What are good sources of Vit K?

Answer 4

Liver, green leafy vegetables, broccoli, peas and green beans.

Question 5

What are the Adequate levels of Vit K intake?

Answer 5

75/75 age 14-18 M/F, and 120/90 for all other groups M/F.