What is your priority action when the anterior fontanelleof an infant buldges while sleeping?

- The anterior fontanelle is diamond shaped and located on the top of the head. It should be soft and flat in a normal infant, and it normally closes by 12 to 18 months of age. A larger-than-normal fontanelle may be a sign of increased ICP within the skull. Although the anterior fontanelle may bulge slightly when the infant cries, bulging at rest may indicate increased ICP.

Therefore, the priority action is to report the finding to the physician.