ABR NMP

American Board of Radiology Nuclear Medical Physics Part 2 Qualifying Exam

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About this exam

The ABR Nuclear Medical Physics Part 2 Qualifying Exam is the specialty-specific second step toward ABR certification in medical physics. It is aimed at candidates who have already passed Part 1 (both the General and Clinical sections) and who have completed, or are on track to complete, a CAMPEP-accredited residency or DMP program by August 31 of the exam year. The exam is computer-based and takes approximately five hours in a single session, and it is offered once a year, typically in August. Content emphasizes the knowledge gained during a CAMPEP-accredited medical physics residency and tests a broad understanding of nuclear medical physics practice, alongside professionalism and ethics material covered by the ABR's Professionalism & Ethics content guide. Question formats are mostly multiple choice, with drag-and-drop items asking you to identify an anatomical site, equipment component, or region on a graph. Scoring is criterion-referenced against a fixed standard; the exam is scored as a whole and all categories must be passed together. Preparation should center on the ABR Part 2 Nuclear Medical Physics content guide, the constants and physical values list, the published sample questions and answer sheet for the NMP Part 2 exam, and the embedded-calculator practice exercises. This page is independent study material and is not affiliated with or endorsed by the ABR.

What you'll study

Common questions

About ABR NMP preparation

What is the format of the Nuclear Medical Physics Part 2 Exam?

It is a computer-based exam delivered in one session of approximately five hours. Most items are multiple choice; drag-and-drop items require you to click the correct spot on an image to identify an anatomical site, equipment component, or region on a graph. You can flag items within a section, but once you leave a section you cannot return to it.

When is the exam offered, and when can I apply?

The ABR offers the Part 2 Exam once a year, typically in August. For the 2027 administration, applications may be submitted between the first business day in February and March 31, 2027. The ABR emails an invitation about two months before the exam with registration instructions in myABR.

How is the Part 2 Exam scored, and what happens if I fail?

Scoring is criterion-referenced against a fixed standard rather than against other candidates. The exam is scored as a whole and the result is pass or fail, with all categories required to pass together. If you do not meet the standard, you must retake the entire exam, not just selected categories.

Am I eligible to sit for the NMP Part 2 Exam?

You must have passed Part 1 (both General and Clinical), have completed or be on track to complete a CAMPEP-accredited residency or DMP program by August 31 of the exam year, and have started residency training within 10 years of passing Part 1. Candidates in a 2+1 residency may be board eligible in both diagnostic and nuclear medical physics.

How long do I have to complete certification once I finish residency?

Board eligibility runs for six full calendar years from the completion of your residency or your Part 2 approval, whichever comes first. If you miss an exam opportunity because you did not register or canceled, and you remain within your eligibility period, the ABR invites you to the next available exam.

Which calculators are allowed?

An embedded calculator is provided in the exam interface, and approved handheld Texas Instruments models are also permitted for the Parts 1 and 2 Qualifying Exams. Approved handhelds cannot contain notes, manually programmed formulas, or additional markings; unauthorized markings must be covered with solid-colored tape. You verify your calculator at check-in.

What should I study, and in what order?

Start with the ABR Part 2 Nuclear Medical Physics content guide and the constants and physical values list to map the scope. Then work the published NMP Part 2 sample questions and answer sheet to learn the item formats, and practice the embedded calculator using the ABR's published exercises on decay, trigonometry, hyperbolic, and generator problems.

What are the most common ways candidates lose points?

Under-preparing for drag-and-drop identification items, since most practice is multiple choice. Another is calculator unfamiliarity: the embedded calculator differs from handheld models, so decay-constant, exponential-decay, and generator-yield calculations become slow. Also common is treating the content guide as a question-by-question preview; it is a reference, and each exam samples only part of the material.

How should I use the Exam Readiness Check?

Complete it on the same computer and in the same location where you will test, since it verifies your camera, microphone, internet, and software and requires an ID scan and selfie. Completing it also unlocks the sample questions. If you change computers or locations before exam day, repeat the check.

When are results available?

Computer-based exam results are posted in myABR about one month after the exam, and you receive an email notification when they are available. A progress bar on the ABR exam page shows the current scoring phase while results are being processed.