Which behavior by a mother of a newborn requires intervention from the nurse?

The behavior that requires intervention from the nurse is placing the newborn in a prone position. This is because the prone position, or positioning a baby on their stomach to sleep, is associated with an increased risk of sudden infant death syndrome (SIDS). Current recommendations from pediatric health organizations advocate for infants to be placed on their backs to sleep in order to reduce the risk of SIDS.

In contrast, feeding a newborn every 2 hours is generally considered appropriate, as newborns have small stomachs and need frequent feedings. Using a crib for the newborn aligns with safe sleeping practices, provided that the crib meets safety standards. Swaddling, when done properly, can provide comfort and security for a newborn, and is a common practice that helps them feel safe and sleep better. Thus, the other options reflect typical, safe behaviors for a mother caring for her newborn.