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?
High-Yield Explanation
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