A charge nurse is reviewing morning laboratory reports for clients on the unit. The charge nurse should recognize that which of the following laboratory findings is the priority to report to the provider?

A. An INR of 5.2 is critically elevated and places the client at risk for spontaneous bleeding. This requires immediate provider notification and intervention. B. A BUN of 21 mg/dL is slightly above the normal range (7–20 mg/dL) and is not immediately life-threatening. C. A hemoglobin of 19 g/dL is elevated and may indicate dehydration or polycythemia, but it is not the most urgent value. D. A fasting glucose of 69 mg/dL is slightly below normal but not critical and can typically be corrected with a snack or meal.