65-year-old man with acute myocardial infarction complicated by cardiogenic shock is admitted to the coronary
care unit. His hospital course is complicated by acute renal failure and lower gastrointestinal bleeding from
anticoagulation therapy. The patient has no previous history of thyroid disease. Physical examination of the
thyroid gland is normal. Laboratory results are as follows
Thyroxine (T 4), free 1.3 ng/dl (normal, 0.9-2.4
ng/dl)
Triiodothyronine (T3), 70 ng/dl (normal, 80-180
ng/dl)
TSH 2.0 mU/L (normal, 0.5-5.0
mU/L)
06
Which of the following is the most likely diagnosis?
- 0 A. Central hypothyroidism
- 0 B. Euthyroid sick syndrome
- 0 C. Primary hypothyroidism
- 0 D. Riedel’s thyroiditis
- 0 E. Subclinical hypothyroidism
0 voters