65-year-old man with acute myocardial infarction complicated by cardiogenic shock

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)

total

TSH 2.0 mU/L (normal, 0.5-5.0

mU/L)

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