This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Thyroid, Subject name: Medicine
[{'content': "A 65-year-old woman presents to her GP complaining of low mood.She repos a past medical history of atrial fibrillation and type 2 diabetes. Clinical examination reveals cool peripheries and a pulse of 45 bpm. Thyroid function tests (TFTs) show the following: TSH:6.5 mU/L (0.4-4.0 mU/L) T4:4 pmol/L (9-24 pmol/L) Which of the following is the most likely cause of this patient's symptoms? \nSelect and explain. \nA. Drug induced hypothyroidism, B. Hashimoto's Thyroiditis, C. Secondary hypothyroidism, D. Teiary hypothyroidism", 'role': 'user'}, {'content': 'Answer: A \nExplanation: In question : TSH || T4 || Bradycardia suggestive of 1o Hypothyoidism Option C- Pituitary damaged TSH| T3| T4| Option D- Hypothalamus is damaged TRH | TSH | In the question given history of Atrial fibrillation so 2 drugs given for it AMIODORONE & IBUTILIDE S/E : drug induced hypothyroidism', 'role': 'assistant'}]