During the admission of a newborn, the nurse identifies a localized swelling that does not cross the suture line on the posterior area of the parietal bone. Which action should the nurse implement?

Apply direct pressure to the caput succedaneum.

Submit a request for a STAT Computerized Tomography (CT) scan of the head.

Notify the pediatrician of the cephalhematoma.

Assess neurological vital signs every 4 hours.