Final answer:
The nurse should report the elevated fasting blood glucose level to the provider, while the other laboratory findings are within the normal range.
Step-by-step explanation:
Out of the provided options, the nurse should report the elevated fasting blood glucose level to the provider. During pregnancy, it is important to monitor blood glucose levels as elevated levels can indicate gestational diabetes, which can pose risks to both the mother and the baby. By reporting this finding, the nurse ensures that appropriate interventions can be implemented to manage and control blood glucose levels.
On the other hand, a white blood cell count of 10,000/mm³, a hemoglobin level of 12 g/dL, and a platelet count of 200,000/mm³ are within the normal range and do not require immediate concern or reporting.