The nurse administers vitamin K to the newborn for what reason?

Bacteria that synthesize vitamin K are not present in the newborn's intestinal tract.

Vitamin K prevents the synthesis of prothrombin in the liver and must be given by injection.

The supply of vitamin K is inadequate for at least 12 months, and the newborn musti supplemented throughout infancy.

Most mothers have a diet deficient in vitamin K, which results in the infant being deficient.