Final answer:
The nurse should reassure the client that the weight loss is normal in the first few days.
Step-by-step explanation:
The most appropriate response by the nurse in this scenario would be to reassure the client that the weight loss is normal in the first few days. This weight loss is normal in the first few days. It is typical for newborns to lose a small amount of weight in the first week after birth, usually about three to seven percent of their birth weight. In this case, the baby has lost 8 ounces, which is within the expected range of weight loss. The nurse should provide education to the client about the normal weight loss patterns in newborns and encourage continued feeding and close monitoring of the baby's weight gain.