What is the corresponding A1C used for 86 mmol/mol or where the blood glucose is

What is the corresponding A1C used for 86 mmol/mol or where the blood glucose is less than or equal to 300 mg/dL.? What do the current guidelines suggest regarding initiation of therapy for the patient described, a newly diagnosed patient is symptomatic or has a hemoglobin A1c less than or equal to 86 mmol/mol or where the blood glucose is less than or equal to 300 mg/dL ?