Answer to Question 1
D
A normal infant is born vitamin K deficient, and all infants are given an IM injection of phyto-nadione immediately after delivery. Newborns have not developed the intestinal flora needed to produce sufficient amounts of vitamin K. Menadione is not used in infants because of the in-creased risk of hyperbilirubinemia associated with its use.
Answer to Question 2
B
Patients taking an OC who undergo surgery in which immobilization increases the risk of post-operative thrombosis should stop taking the OC at least 4 weeks prior to surgery. The patient should discuss an alternate method of birth control with her provider. Estrogen, not progestin, increases the risk of thrombosis. The estrogen-containing OC should be stopped 4 weeks prior to surgery. Taking the OC at bedtime does not decrease the risk.