Final answer:
The finding that would be of concern to the nurse in this case is the blood glucose level of 130 mg/dL.
Step-by-step explanation:
The finding that would be of concern to the nurse in this case is the blood glucose level of 130 mg/dL. A fasting blood glucose level above 125 mg/dL is indicative of diabetes. Since the patient has a fasting blood glucose level of 130 mg/dL, it suggests that they have diabetes mellitus. This finding should be of concern to the nurse as it may require further monitoring and management.