Final answer:
To reduce pain during a heel stick, administering sucrose before the procedure is an effective strategy. Other options mentioned are not considered effective for pain management in this context.
Step-by-step explanation:
To minimize an infant's pain during a heel stick procedure, the nurse should administer sucrose to the infant prior to the procedure. This method involves using a sweet-tasting solution to provide pain relief to the infant. Research has shown that sucrose can help reduce pain perception in infants through its soothing effects, and it is a common practice to give newborn infants a small amount of sucrose on a pacifier before procedures that may cause discomfort. Options such as instructing mothers not to breastfeed, undressing the infant placing them under a warmer, or avoiding the kangaroo hold post-procedure are not considered effective pain management strategies for breastfeeding infants undergoing heel sticks.