Vitamin K

Question 1

Vitamin K is essential for an enzyme. Name that enzyme.

Answer 1

γ-Glutamyl carboxylase

Question 2

The name of Vitamin K obtained from the plant.

Answer 2

Phylloquinone or Vitamin K1

Question 3

The name of Vitamin K obtained from intestinal bacteria.

Answer 3

Menaquinone or Vitamin K2

Question 4

The synthetic form of Vitamin K

Answer 4

Menadione

Question 5

Vitamin K food sources

Answer 5

Liver
Egg yolk
Cabbage
Spinach
Kale

Question 6

Causes of Vitamin K deficiency

Answer 6

Poor diet
Gastrointestinal disorders
Neonate whose intestinal flora hasn't been established
Failure of liver to produce bile
Antibiotics

Question 7

Vitamin K toxicity symptoms

Answer 7

Hemolytic Anemia

Jaundice

Question 8

Enzyme Vitamin K epoxide reductase c1 reduces the vitamin k back to hydroquinone to continue the reaction. This enzyme is inhibited by which drug?

Answer 8

Warfarin

Question 9

The principal role of vitamin K is in the posttranslational modification of a number of proteins most of which are involved in ___________ (transportation/clotting)

Answer 9

clotting

Question 10

By using antibiotics like cefamandole, the bacterial population is affected causing vitamin k deficiency leading to _____________ (hypoprothrominemia/anemia)

Answer 10

hypoprthrombinemia

Question 11

It is recommended that all newborns receive an intramuscular dose of vitamin k as prophylaxis to prevent __________________ because newborns lack intestinal flora.

Answer 11

hemorrhagic disease of the newborn