Newborn Nursing Care Q 24
When newborns have been on formula for 36-48 hours, they should have a:
A. Screening for PKU
B. Vitamin K injection
C. Test for necrotizing enterocolitis
D. Heel stick for blood glucose level
Correct Answer: A. Screening for PKU.
Option A: By now the newborn will have ingested an ample amount of the amino acid phenylalanine, which, if not metabolized because of a lack of the liver enzyme, can deposit injurious metabolites into the bloodstream and brain; early detection can determine if the liver enzyme is absent.