Final answer:
Caput succedaneum is identified by scalp edema that increases after several hours.
Step-by-step explanation:
When differentiating between cephalhematoma and caput succedaneum in a newborn, the nurse identifies that the newborn with caput succedaneum has scalp edema that:
- Becomes ecchymotic: This is false. Caput succedaneum does not become ecchymotic, while cephalhematoma can.
- Crosses the suture line: This is false. Caput succedaneum usually stays above the suture line, while cephalhematoma does cross the suture line.
- Increases after several hours: This is true. Caput succedaneum may increase in size after several hours, while cephalhematoma does not.
- Is tender in the surrounding area: This is false. Caput succedaneum is not tender, while cephalhematoma can be tender.
The correct answer is C. Increases after several hours.