ARRT Nuclear Medicine Exam Guide 2026: Current NMT Blueprint

The 2026 Answer in One Minute

The ARRT Nuclear Medicine Technology examination has 230 total items: 200 scored questions and 30 unscored pilot questions. The pilot items are mixed into the test and are not identified. You receive 230 minutes of test time, while the full appointment is 250 minutes, or 4 hours 10 minutes, because ARRT also schedules an eight-minute tutorial, a two-minute nondisclosure agreement, and a 10-minute survey.

The passing standard is a scaled score of 75, not 75% correct. ARRT's 2025 annual report lists approximately 63% correct as the passing point for NMT forms in that report, but the raw number needed can vary with form difficulty. Prepare to the standard, not to a guessed raw-score shortcut.

Use these official documents as the controlling sources:

• ARRT Nuclear Medicine Technology credential page
• Current NMT content specifications through January 31, 2027
• 2026 Primary Eligibility Pathway Handbook

The number of questions in an OpenExamPrep practice bank is a study-resource count. It is not the formal exam's totalQuestions field.

Which Blueprint Applies to a 2026 Test Date?

ARRT now publishes two NMT content specifications. Its official content-specifications index labels the current version as valid through January 31, 2027 and the next version as effective February 1, 2027. If you test in 2026, use the current 24/25/33/118 distribution. Do not switch early merely because the 2027 PDF is already online.

The examination still has 30 pilot items under both versions. ARRT's April 2026 update notice explains the future changes, including added patient-care details, updated informatics language, and procedure-list revisions. Candidates testing on or after February 1, 2027 should rebuild their study checklist from the new document instead of assuming a 2026 plan still matches.

Current 2026 Domain Counts: Procedures Are 59%

ARRT publishes scored item counts rather than rounded domain weights. Dividing each count by 200 gives the shares below. This corrects a common mix-up with other nuclear medicine certification outlines.

A balanced plan must cover all four categories, but equal study time is not blueprint-aligned. Procedures contain nearly three of every five scored questions. Image Production is the next largest category, while Patient Care and Safety together still account for 49 scored items and can appear inside procedure-centered scenarios.

Patient Care: 24 scored items

The current outline places all 24 questions under Patient Interactions and Management. It includes ethical and legal aspects, communication, patient assistance and monitoring, medical emergencies, infection control, hazardous materials, and pharmacology.

Your review should connect a patient detail to the next safe action. Practice verifying identity and the order, recognizing communication barriers, monitoring relevant signs, responding within the technologist's role, applying standard precautions, and reviewing medications or laboratory values named in the procedure. A patient-care error log should say which cue you missed, not simply that the answer was wrong.

Safety: 25 scored items

Safety covers radiation physics, radiobiology, protection, regulations, medical events, facility monitoring, spills, radioactive-material handling, and pharmaceutical storage or disposal. The official outline includes both conventional and SI radiation units, so be able to recognize and convert the units used in a stem.

Organize this category as decisions: identify the radiation or contamination problem, select the appropriate meter or protection principle, apply time-distance-shielding or ALARA, then document or escalate according to the scenario. Avoid memorizing isolated limits without knowing whether the question concerns occupational exposure, public exposure, pregnancy, release, shipping, a survey, or a medical event.

Image Production: 33 scored items

The instrumentation category covers survey meters, dose calibrators, scintillation detector systems, gas and aerosol delivery systems, gamma cameras, PET/CT, data processing, and imaging informatics. Study each device with four columns: operating principle, required quality-control check, failure pattern, and appropriate response.

For gamma cameras, connect energy-window selection, collimation, acquisition parameters, uniformity, spatial resolution, sensitivity, center of rotation, and SPECT phantom findings. For PET/CT, connect calibration, gating, time of flight, attenuation correction, registration, reconstruction, and common artifact sources. The current outline explicitly says diagnostic CT is not assessed on the NMT examination; CT content is limited to attenuation correction and anatomic localization.

Procedures: 118 scored items

Procedures are not one undifferentiated block. The current specifications divide them into five scored subcategories:

Build a procedure matrix from the outline. For each listed study, record the indication, patient preparation, relevant medication or laboratory issue, radiopharmaceutical, administration route, biodistribution, acquisition timing, camera or collimator choice, processing, artifact risks, and safety considerations. This structure is more transferable than memorizing tracer-name pairs.

Keep radiopharmaceutical calculations in context. The outline explicitly includes unit conversion, volume determination, decay tables, concentration, and activity. A correct setup must preserve units and produce a clinically reasonable result. When reviewing a miss, distinguish a formula error from a failure to identify the intended administration time, calibration time, residual activity, or required quantity.

What the 2025 Cut-Score Change Means

ARRT changed the NMT cut score on February 1, 2025. The reported passing score remained 75, but ARRT said the new standard would require approximately 13 more correct items than the previous standard on a representative exam. That makes old forum conversion charts and pre-2025 pass estimates unreliable. Read the official NMT cut-score notice rather than treating 75 as a percentage.

ARRT's 2025 Annual Exam Report reports 439 first-time NMT candidates, a mean scaled score of 77.9, and a 64.7% first-attempt pass rate. That rate describes the 2025 candidate group; it is not an individual prediction. Its practical message is that a near-threshold average on familiar questions is not enough. You need stable performance across the entire official outline.

Eligibility: NMT Uses the Primary Pathway

ARRT Nuclear Medicine Technology is a primary eligibility pathway credential. The current credential page does not list NMT as postprimary. To qualify through the primary pathway, a candidate must complete an ARRT-verified educational program in Nuclear Medicine Technology, earn an associate degree or higher from an institution accredited by an agency ARRT recognizes, satisfy ethics requirements, and pass the examination. The degree may be in any subject, but it must be awarded before the exam.

ARRT gives candidates three years after completing the professional program to establish eligibility. Once eligible, candidates have three attempts within three years, beginning with the opening date of the first exam window. The current ARRT fees page lists the primary application fee as $225 and a primary reapplication after an unsuccessful first or second attempt as $200. ARRT does not state a blanket 30-day retake waiting period; candidates reapply through their ARRT account.

After ARRT processes a primary application, the exam window lasts 365 days. The test is delivered at a Pearson test center. You receive a preliminary scaled score after testing, and ARRT says official results are generally available online within about 10 business days. Always use your Candidate Status Report for personal deadlines and scheduling instructions.

A Four-Week Blueprint-Based Study Plan

Week 1: Establish the correct baseline

Download the current specifications and mark every line as strong, developing, or weak. Take a mixed diagnostic set, then sort each miss into one of the eight official scored subcategories, not a generic NMT bucket. Review Patient Care and Safety first so later procedure practice includes the right screening, monitoring, infection-control, radiation-protection, and regulatory decisions.

Week 2: Build the 118-item procedure core

Create your radionuclide and radiopharmaceutical matrix, then work through cardiac and endocrine/oncology procedures. For each study, answer the same sequence: why is it ordered, what must happen before administration, what agent and route fit, what distribution is expected, how is it acquired, and what can create a misleading result? Mix calculation drills into the relevant workflow rather than isolating all math on one day.

Week 3: Add instrumentation and remaining procedures

Cover gastrointestinal/genitourinary and other imaging procedures while building an instrumentation QC table. Practice questions that force you to separate patient motion, attenuation, processing choices, injection problems, incorrect acquisition settings, and equipment failure. Revisit any procedure where you know the agent but cannot explain the preparation, acquisition, or artifact mechanism.

Week 4: Convert knowledge into timed decisions

Use timed mixed blocks near the exam's approximate one-minute-per-item pace. After each block, write a one-sentence cause for every miss and a one-sentence rule that would transfer to a different case. Recheck coverage against the official 24/25/33/118 counts so strong favorite topics do not hide an untouched category. Finish with focused review, not indiscriminate rereading.

free ARRT Nuclear Medicine practice questionsPractice questions with detailed explanations

Exam-Day Pacing and Interface

ARRT allows approximately one minute per item. You must answer a question before moving forward, but you may flag it and return later if time remains. Pilot questions look like scored questions, so do not try to identify or skip them. Answer every item; ARRT bases the score on correct answers.

Use the eight-minute tutorial to learn the interface and online calculator before the timed examination begins. Keep the difference between test time and appointment length clear: 230 minutes are for the 230 items, while the scheduled appointment is 250 minutes. A break does not stop the exam clock, so pace from the displayed time remaining rather than an assumed halfway break.

Final Readiness Check

You are ready when your error log is shrinking across all eight scored subcategories, you can set up activity and decay calculations with units, and you can explain how patient preparation, radiopharmaceutical behavior, acquisition, processing, and safety interact in a procedure scenario.

For a 2026 test date, remember the controlling facts: primary pathway, 230 total items, 230 minutes of test time, 250-minute appointment, scaled 75, and current domain counts of 24/25/33/118. If your test date moves to February 1, 2027 or later, replace the blueprint before continuing your plan.