01-28-2012, 01:56 PM
A 52-year-old male is being seen in your clinic for
weight loss, tachycardia, and anxiety. You suspect
hyperthyroidism and decide to check blood work. The
patient has a low TSH suggestive of hyperthyroidism
but has a normal free T4. The most likely explanation of this patient’s
symptoms and laboratory findings is:
A) He has pituitary dysfunction with a pending central
hypothyroidism.
B) He has an isolated T3 hyperthyroidism.
C) He likely has Addison disease.
D) He is taking aspirin which interferes with the assay
for free T4.
E) He it taking aspirin which interferes with the assay
for TSH.
weight loss, tachycardia, and anxiety. You suspect
hyperthyroidism and decide to check blood work. The
patient has a low TSH suggestive of hyperthyroidism
but has a normal free T4. The most likely explanation of this patient’s
symptoms and laboratory findings is:
A) He has pituitary dysfunction with a pending central
hypothyroidism.
B) He has an isolated T3 hyperthyroidism.
C) He likely has Addison disease.
D) He is taking aspirin which interferes with the assay
for free T4.
E) He it taking aspirin which interferes with the assay
for TSH.