This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Which of the following statements regarding treatment of hypothyroidism in a patient with ischemic hea disease is not false: \nSelect and explain. \nA. Low dose of Levothyroxine, B. Normal dose of Levothyroxine, C. Do not use Levothyroxine, D. Use thyroid extract', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Replacement therapy typically is initiated with 25mcg and the dose is increased gradually.Initiation of levothyroxine therapy in IHD patient is done slowly and the dose is not increased before 6-8 week interval. Ref: The thyroid and cardiovascular risk: Merck European Thyroid Symposium By Karl-Michael Derwahl, Leonides Duntas, Sigrid Butz, Page 71; Mayo Clinic Internal Medicine Board Review By Amit Ghosh, MD, Page 197', 'role': 'assistant'}]