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Nuclear medicine exam review Study Guide Solutions Static bone imaging is routinely performed how long after tracer administration to an adult: A)30min B)1hr C)2-3hr D)24hr - ANSWER-C)2-3hr. Static bone imaging performed with a labeled diphosphonate compound is routinely performed 2-3hr after ...

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  • November 11, 2024
  • 102
  • 2024/2025
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Nuclear medicine exam review Study
Guide Solutions

Static bone imaging is routinely performed how long after tracer administration to an

adult: A)30min B)1hr C)2-3hr D)24hr - ANSWER✔✔-C)2-3hr. Static bone imaging

performed with a labeled diphosphonate compound is routinely performed 2-3hr after

tracer administration.


Which of the following structures normally appear as areas of increased activity on the

bone images of adults: A)anterior iliac crests B)glenoid fossa C)sternoclavicular joints

D)all of the above - ANSWER✔✔-D)all the above. On bone images of adults, areas of

normally increased tracer activity include all those listed as well as the sacroiliac, hip,

and acromioclavicular joints and vertebral column.


Which of the following conditions is visualized on a bone image as a photopenic area:

A)attenuation B)tracer infiltration C)acute myocardial infarction D)osteomyelitis -

ANSWER✔✔-A)attenuation. A photopenic area is one in which a smaller number of

photons is visualized-a cold spot. A material that absorbs photons may cause an

attenuation artifact, an area of falsely decreased tracer concentration(jewelry, belt

buckles, pacemaker)



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It is safe to block a portion of the pulmonary circulation with MAA particles in patients

with suspected PE because: A)# of injected particles block only a small number of

precapillary arterioles B)particles are made from albumin isolated from human serum -

ANSWER✔✔-A)# of injected particles blocks only a small number of precapillary

arterioles. Less than 1% of the precapillary arterioles are blocked with the MAA

particles; therefore, there is no adverse effect on the patient.


A nebulizer is used to administer which of the following lung ventilation

radiopharmaceuticals: A)81mKr gas B)133Xe gas C)99mTc-pentetate D)99mTc-MAA -

ANSWER✔✔-C)99mTc-pentetate. A nebulizer is a device that uses ultrasound or

pressure to create airborne (aerosol) particles from a liquid.


Which of the following radiopharmaceuticals may be used to image acute deep vein

thrombosis in the lower extremities: A)99mTc-MAA B)99mTc-arcitumomab C)131I-

iobenguane D)111In-oxyquinoline - ANSWER✔✔-A)99mTc-MAA is used to image

acute deep-vein thrombosis in the lower extremities.


In performing radionuclide venography with 99mTc-MAA, the radiopharmaceutical is

administered at what site: A)antecubital of either arm B)either femoral vein C)dorsal

veins on top of each foot D)either basilic vein - ANSWER✔✔-C)dorsal vein on to of each

foot. The tracer is introduced into the deep venous system of the legs. Therefore, the

tracer is administered into the dorsal vein of each foot.




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After total thyroidectomy, total-body imaging with radioiodine normally will

demonstrate tracer concentration in which areas: A)liver, lungs, bones B)salivary

glands, stomach, and bladder C)liver, salivary glands, stomach, lungs D)bladder, liver,

brain - ANSWER✔✔-B) The salivary glands and saliva in the mouth, the gastric mucosa

and secretions into the intestine, and the urinary bladder are sites that normally

concentrate radioiodine. Concentrations in other sites indicate areas of functioning

thyroid metastases.


A parathyroid adenoma will concentrate which of the following radioparmaceuticals:

A)123I-sodium iodide B)99mTc-pertechnetate C)99mTc-sestamibi D)99mTc-

pertechnetate or 99mTc-sestamibi - ANSWER✔✔-C)99mTc-sestamibi


When positioning a patient for an LAO view of a gated equilibrium ventricular function

study, tilting the camera toward the patient's feet separates what two structures: A)left

ventricle and aorta B)left ventricle and left atrium C)left and right atria - ANSWER✔✔-

B)left ventricle and left atrium. The left atrium is partially hidden by the aorta and

pulmonary artery. Tilting the detector caudally visually brings the left atrium out from

under these structures and separates it from the left ventricle.


Which tracer is excreted primarily via the hepatobiliary system: A)99mTc-sestamibi

B)99mTc-exametazime C)99mTc-medronate D)201Tl-thallous chloride - ANSWER✔✔-

A)99mTc-sestamibi




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A cardiac stress test requires the placement of how many electrodes on the patient's

body: A)3 B)6 C)10 D)12 - ANSWER✔✔-C)10. A cardiac stress test requires a 12-lead

ECG tracing, which uses 10 electrodes attached to the patient. 2 arm, 2 leg, and 6 chest

leads.


Visualization of bone marrow uptake on a 99mTc-sulfer colloid liver/spleen image is

most likely the result of: A)improper colloid particle size B)insufficient tracer circulation

time C)liver dysfunction D)overactive bone marrow - ANSWER✔✔-C)liver

dysfunction. Bone marrow uptake is visualized on liver/spleen images when severe

liver dysfunction, such as advanced cirrhosis, is present.


During hepatobiliary imaging, which structure will NOT be visualized if cystic duct

obstruction is present: A)common hepatic duct B)common bile duct C)gallbladder

D)small intestine - ANSWER✔✔-C)gallbladder. If cystic duct obstruction is present, the

tracer will be unable to enter the gallbladder. The cystic duct is the passage between the

common bile duct and the gallbladder.


How long after the administration of 99mTc-pertechnetate does imaging begin for the

localization of a Meckel's diverticulum: A)immediately B)15-20min C)1hr D)2-3hr -

ANSWER✔✔-A)immediately. For localization of a Meckel's diverticulum, imaging

begins immediately after administration of the tracer.


All of the following 99mTc-labeled radiopharmaceuticals may be appropriate for

performing a left-to-right cardiac shunt exam using the first-pass method except:

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