Disorders of the Thyroid Gland: Hyperthyroidism/Thyrotoxicosis

Question 1

What is Graves’ Disease?

Answer 1

The most common cause of hyperthyroidism; F:M 8:1 ; Autoimmune driven disorder

Question 2

What would thyroid levels look like in primary hyperthyroidism?

Answer 2

Decreased TSH and increased Free T4

Question 3

What would thyroid levels look like in secondary hyperthyroidism?

Answer 3

Increased TSH despite increased Free T4

Question 4

What test is used to determine the cause of hyperthyroid?

Answer 4

Antibody test

Question 5

Why would you ultrasound the thryroid?

Answer 5

to differentiate between a goiter, nodule(s) and normal gland

Question 6

Why would you order a radioiodine uptake and scan?

Answer 6

If a Diagnosis of Graves’, TMNG, or TNG is suspected

Question 7

Which diseases will show a high radioiodine uptake?

Answer 7

Graves’, TMNG, TNG(toxic adenoma), and TSH-secreting Pituitary adenoma

Question 8

Which diseases will show a Low radioiodine uptake?

Answer 8

Subacute Thyroiditis, Silent (post partum) thyroiditis, exogenous or ectopic hyperthyroidism