09-22-2007, 05:12 PM
A 58-year-old woman presents as an outpatient with lethargy, fatigue, and cold intolerance. Thyroid function testing reveals a free T4 of 0.5 (0.7 to 2.0) and a TSH of 0.1 (0.5 to 5). Which of the following is the best next diagnostic test
A.
Thyroid scan and uptake
B.
MRI of the pituitary
C.
Prolactin
D.
Thyroid autoantibodies
E.
T3
A.
Thyroid scan and uptake
B.
MRI of the pituitary
C.
Prolactin
D.
Thyroid autoantibodies
E.
T3