Chapter 16: Thyroid & Parathyroid

Chapter 16. Thyroid & Parathyroid

The best test to assess the thyroid function status of a patient who does not have known pituitary disease is

A. Free T₄

B. T₃

C. T₄

D. TSH

E. T₄/T₃ ratio

D. TSH

Indications for surgery to correct hyperthyroidism include

A. Pregnancy

B. Age over 50 years

C. Large goiter with low radioiodine uptake

D. Both A and C

E. None of the above

D. Both A and C

Follicular thyroid cancer

A. Is separated from papillary thyroid cancer because it develops from the follicular cells of the thyroid

B. Is less likely to spread to lymph nodes than is papillary thyroid cancer

C. Is commonly inoperable because of local invasion and encompassment of surrounding structures

D. Commonly makes thyroid hormone producing hyperthyroidism

E. Is best treated with radioiodine therapy, followed by thyroidectomy

B. Is less likely to spread to lymph nodes than is papillary thyroid cancer

The differential diagnosis of hypercalcemia includes

A. Vitamin A toxicity

B. Vigorous exercise

C. Hypothyroidism

D. Myasthenia gravis

E. None of the above

A. Vitamin A toxicity

Patient characteristics that would meet current indications for surgery to correct asymptomatic hyperparathyroidism include

A. Renal insufficiency with a glomerular filtration rate of 72 mL/min

B. Age of 57 years

C. Positive localization tests with concordant ultrasound and sestamibi scans

D. Osteoporosis with a T-score of –2.8

E. A serum calcium level of 10.8 mg/dL with an upper limit of normal of 10.3 mg/dL

D. Osteoporosis with a T-score of -2.8