NMTCB Nuclear Medicine Technology practice test

In a gamma camera, the component that absorbs scattered photons and allows only photons traveling in an appropriate direction to reach the detector crystal is the

A nuclear medicine technologist wants to reduce occupational radiation exposure. According to the ALARA principle, the three primary protective factors are

A molybdenum-99 and technetium-99m generator is eluted to obtain technetium-99m. The technetium-99m is produced as the daughter from the decay of which parent radionuclide?

Before patient administration, a dose of a technetium-99m radiopharmaceutical is checked in a dose calibrator. The dose calibrator is used primarily to measure which of the following?

In a myocardial perfusion SPECT study, a region of myocardium that shows a perfusion defect during stress but normal uptake at rest most likely represents

Which technetium-99m labeled radiopharmaceutical is most commonly used for routine whole-body bone scintigraphy?

A radiopharmaceutical is described as a gamma emitter with a photopeak of 140 keV. This energy is most characteristic of which radionuclide?

In a ventilation-perfusion lung study performed to evaluate for pulmonary embolism, a finding of normal ventilation with multiple segmental perfusion defects is referred to as a

For a thyroid uptake and scan study, iodine-123 is often preferred over iodine-131 primarily because iodine-123

A technetium-99m MAG3 renal study is performed to evaluate kidney function. Technetium-99m MAG3 is cleared from the blood primarily by which mechanism?

In a gamma camera, the pulse height analyzer is set with an energy window centered on the photopeak. The main purpose of this energy window is to

In a hepatobiliary (HIDA) scan, failure to visualize the gallbladder within the expected time frame in a patient with right upper quadrant pain is most consistent with which diagnosis?

A pregnant patient is scheduled for a nuclear medicine procedure. The technologist's most appropriate action is to

A daily quality control test that evaluates whether a gamma camera detector responds uniformly across its entire field of view is the

Fluorine-18 fluorodeoxyglucose (FDG) is widely used in PET oncology imaging because malignant tumor cells typically have

During radiochemical purity testing of a technetium-99m radiopharmaceutical, the presence of free (unbound) technetium-99m pertechnetate is most likely to localize in which structures if administered?

Before administering a radiopharmaceutical, a nuclear medicine technologist should verify the patient's identity using at least

A vial contains 40 millicuries of technetium-99m, which has a physical half-life of approximately 6 hours. Approximately how much activity will remain after 12 hours, assuming only physical decay?

A radiopharmaceutical spill occurs on the floor of the hot lab. The first priority of the technologist responding to the spill is to