1.
Patient received 200 mCi of I-123 for thyroid uptake and scan. If the data shown below were obtained 6 hours post administration of I-123, what is the percentage thyroid uptake at 6 hours? 200 mCi I-123 capsules cts 135,890 cpm, Background cts 109 cpm, Thyroid cts 45,534 cpm, Thigh cts 2,109 cpm.
2.
The mediastinum is the space in the thoracic cavity behind the sternum and in between the two pleural sacs that contains all of the following anatomical structures EXCEPT:
3.
Thyroid scintigraphy scan images reveals a cold nodule. Which of the following conditions explains the finding?
4.
Most patients with overt hyperthyroidism have an assemblage of symptoms which include all of the following EXCEPT:
5.
Which of the following enlargement is termed as goiter?
6.
What is the usual range of a 24 hr radioiodine uptake in hyperthyroid patients diagnosed with subacute thyroiditis?
7.
The hormones T3 and T4 are coming from..
8.
Tc-99m and I-123 are the most commonly used agents for thyroid imaging. Thyroid imaging with technetium administration:
9.
Esophageal activity can mimic ectopic thyroid tissue on a thyroid scan. To avoid misinterpretation:
10.
A lone “cold” nodule in an otherwise normal thyroid gland warrants:
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