Select the cоrrect аnswer: During а rоutine аnnual visit, the fоllowing thyroid panel is reported on a 74-year-old adult with a history of atrial fibrillation: TSH 12 uIU/L Free T4 0.3 uIu/L Anti-TPO antibodies positive. The patient has no allergies. The physical exam is unremarkable. The primary care nurse practitioner incorporates which of the following recommendations into the patient's plan of care?