A parent asks the nurse why the newborn is getting a vitamin K injection in the birth room.The nurse explains that the injection is necessary because:

Newborns are prone to hypoglycemia, and vitamin K helps maintain a steady blood glucose level.

Vitamin K is needed for coagulation, and the newborn does not produce enough vitamin K.

The birthing parent was febrile at the time of birth and prophylactic vitamin K is necessary.

Newborns have deficient levels of prothrombin.