The Nurse Is Caring for a 2-Hour-Old Newborn Whose Mother

The nurse is caring for a 2-hour-old newborn whose mother is diabetic. The nurse assesses that the newborn is experiencing tremors. What nursing action has the highest priority?

A) Obtain a bilirubin level.
B) Obtain a blood calcium level.
C) Take the newborn's temperature.
D) Place a pulse oximeter on the newborn.