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Which of the following is a common primary cause of hypothyroidism?
a) Iodine deficiency
b) Graves' disease
c) TSH-secreting pituitary adenoma
d) Thyroid destruction
What is a hallmark symptom of hyperthyroidism related to cardiovascular function?
a) Bradycardia
b) Diastolic hypertension
c) Heat intolerance
d) Tachycardia
Which lab finding is typically seen in patients with primary hypothyroidism?
a) Decreased TSH, increased fT4
b) Increased TSH, decreased fT4
c) Normal TSH, decreased fT3
d) Undetectable TSH, increased fT3
What is the first-line treatment for hypothyroidism?
a) Cytomel (T3)
b) Methimazole
c) L-thyroxine (T4)
d) Iodine supplementation
Which therapeutic option is preferred for hyperthyroidism in most non-pregnant patients?
a) Propylthiouracil
b) Thyroidectomy
c) Iodine supplementation
d) Methimazole
A
D
B
C
D