Which action is most appropriate for a nurse to perform with a stable newborn in the immediate postpartum period?

• A. Weigh the newborn
• B. Administer vitamin K injection
• C. Inspect the umbilical stump
• D. Evaluate for jaundice with a transcutaneous bilirubin device

Answer: (A)

In the immediate postpartum period for a stable newborn, establishing baseline data takes priority. Weighing the newborn provides a fundamental starting point—the baseline weight—that is essential for monitoring fluid balance, feeding adequacy, and expected weight loss in the first days of life. Having an initial weight allows you to interpret subsequent assessments and catch early signs of dehydration or overhydration.

While giving the vitamin K injection is standard care to prevent hemorrhagic disease, and inspecting the umbilical stump or screening for jaundice are important tasks, they don’t establish the essential baseline data as directly as obtaining the newborn’s weight. Jaundice screening is more informative after the first day or two when bilirubin levels rise, and the umbilical stump inspection and other physical checks are important but build on having an initial weight as a reference.

So, obtaining the newborn’s weight first provides the most meaningful, baseline information to guide ongoing care in the immediate postpartum period.