Nuclear Medicine Quiz

The deposition of 99m Tc-labeled diphosphonates in bone tissue is strongly linked to:

• Osteoclastic activity

• Hematopoietic activity

• Chondroblastic activity

• Osteoblastic activity

Which of the following is the initial positioning for visualizing gastrointestinal bleeding with labeled red blood cells?

• Upper border of liver and spleen at the top of the field of view

• Lower border of liver and spleen at the top of the field of view

• Center of the abdomen

• Lower extremities

Static bone imaging is performed several hours after tracer administration to permit maximum tracer uptake in the:

• Muscles

• Liver

• Skeleton

• Lungs

A well-aligned series of focal hot spots along the rib cage noted on a bone scan is most likely due to:

• Infection

• Trauma

• Metabolic disorder

• Osteoporosis

A normal gallbladder ejection fraction is %.

The outer portion of all bones is covered by:

• Endosteum

• Periosteum

• Epiphysis

• Medullary cavity

A proper 133Xe ventilation study should include:

• Only multiple washout images

• Only an equilibrium image

• Only a first breath image

• All of the responses; multiple washout images, an equilibrium, a first breath image

If not contraindicated, one way to improve the quality of bone images after 99m Tc-MDP administration is to instruct the patient to:

• Eat a high-fat meal

• Avoid water intake

• Stand for an extended period

• Drink at least one liter of fluid

The agent of choice for pulmonary perfusion is:

• 99m Tc-labeled diphosphonates

• 99m Tc-MAA

• 133Xe

• 99m Tc-MDP

In order to demonstrate a sufficient number of arterioles to provide the desired perfusion of the lungs, the 99m Tc-MAA injection needs to contain about:

• 20,000-70,000 particles

• 70,000-150,000 particles

• 150,000-200,000 particles

• 200,000-700,000 particles