Radiopharmaceuticals — MCQs

99m Technetium labeled RBC scintigraphy is PRIMARILY used in the diagnosis of

In radionuclide imaging, the most useful radiopharmaceutical for skeletal imaging is:

Half-life of iodine-131 is

Which test is used for detecting gunshot residue?

Tc-labeled RBCs are used for all except:

Which of the following statements about the half-life of radioisotopes is false?

In designing a clinical protocol for PSMA PET imaging in prostate cancer, which combination of factors would provide optimal image quality while minimizing radiation exposure?

A patient with treated breast cancer shows a liver lesion on CT. FDG-PET shows SUVmax of 2.8 in the lesion. Follow-up scan after 3 months shows increase in size but SUVmax decreased to 1.9. What is the most likely explanation?

A 45-year-old diabetic patient presents for FDG-PET scan for lymphoma staging. Blood glucose is 220 mg/dL. What is the most appropriate management before proceeding with imaging?

What is the underlying principle behind FDG uptake in malignant cells during PET imaging?