Question 1
What is the physical half-life and principal gamma energy of Tc-99m, the most widely used radionuclide in nuclear medicine?
Correct Answer:
6 hours, 140 keV
Question 2
Mo-99 decays to Tc-99m primarily by which decay mode?
Correct Answer:
Beta-minus decay
Question 3
The NRC/USP limit for Mo-99 radionuclidic breakthrough in a Tc-99m generator eluate at the time of administration is:
Correct Answer:
0.15 μCi Mo-99 per mCi Tc-99m
Question 4
Which radionuclide used in PET imaging has the shortest physical half-life, making it practical only with an on-site or nearby cyclotron/generator?
Correct Answer:
Rb-82 (75 seconds)
Question 5
The biological half-life of a radiopharmaceutical is 12 hours and the physical half-life of its radionuclide is 6 hours. What is the effective half-life?
Correct Answer:
4 hours
Question 1
Exam overview

About this Exam

Prepare with the ABR Nuclear Radiology Practice Questions - ABR Nuclear Radiology Subspecialty Certificate of Added Qualification (CAQ) Exam practice quiz. This question bank includes 100 questions covering tc-99m, scan, uptake, imaging, and patient. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

ABR Nuclear Radiology Practice Questions - ABR Nuclear Radiology Subspecialty Certificate of Added Qualification (CAQ) Exam

This practice set contains 100 questions from the matching question bank and focuses on tc-99m, scan, uptake, imaging, and patient. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions