Board Review C Missed Questions

The principle complication of I-131 therapy for hyperthyroidism is:

a. hypothyroidism
b. thyroid storm
c. radiation thyroiditis
d. recurrent hyperthyroidism
e. damage to parathyroid gland

a

A patient is to receive 4 mCi of a therapeutic radiopharmaceutical. What is the maximum activity, in mCi, verified with a dose calibrator that could be administered and not be a recordable event or a misadministration?

a. 3.7 mCi
b. 4.1 mCi
c. 4.4 mCi
d. 5.0 mCi
e. 4.8 mCi

e

Radioiodine therapy is given for:

a. Hyperthyroidism
b. Thyroid cancer
c. Grave’s disease
d. all of the above
e. a and b only

d

The mechanism of action for Radium-223 dichloride is:

a. compartmental localization
b. It mimics potassium ions and attaches to bone mets.
c. It mimics calcium and forms complexes with the hydroxyapatite crystals.
d. simple diffusion

c

Yttrium-90 Ibritumomab tiuxetan is indicated for treatment of:

a. painful bony metastases
b. prostate and breast cancer
c. non-Hodgkin’s lymphoma
d. Hodgkin’s lymphoma

c

Indium 111 pentetreotide is used for:

a. treatment for non-Hodgkin’s lymphoma
b. detection of primary and metastatic neuroendocrine tumors bearing somatostatin receptors
c. imaging non-communicating hydrocephalus
d. treatment of hepatic metastases
e. adrenal imaging

b

The radiopharmaceutical for adrenal imaging is:

a. I-123 MIBG
b. In-111 pentetreotide
c. Tc-99m sestamibi
d. Tc-99m pertechnetat
e. I-123 sodium iodide

a

After thyroid therapy for cancer, patients are monitored by checking:

a. CEA levels
b. TSH levels
c. Thyroglobulin levels
d. PTH levels

c

514 mrems is equivalent to __ mSv

a. 51,400
b. 5140
c. 5.14
d. 0.514

c

A ring badge contains __ to measure radiation exposure.

a. a sodium iodide crystal
b. lithium fluoride crystals
c. photographic film
d. a gas-filled ionization chamber

b

A whole-body sodium iodide scan is done:

a. to detect hyperthyroidism
b. to detect residual thyroid tissue after a thyroidectomy
c. to detect parathyroid cancer
d. to detect anaplastic thyroid cancer

b

LV end-systolic counts are 34,382. LV end-diastolic counts are 52,539. Background counts are 7,385. What is the LV ejection fraction?

a. 34.5%
b. 40%
c. 45%
d. 65%

b