- Which NCT This Cheat Sheet Covers
- Exam Format at a Glance
- Domain Weights: Where the Points Live
- Procedures: The 50% Domain
- Radiopharmaceuticals and Stress Testing (15% Each)
- Anatomy/Physiology/Pathology and Patient Care
- Eligibility, Fees, and Registration Mechanics
- Seven-Year Certification and Recertification
- Scheduling Your Review by Domain Weight
- Exam-Day Logistics Checklist
- Frequently Asked Questions
- NCT here means Nuclear Cardiology Technologist, issued by the NMTCB, not the physician CBNC exam or the PET specialty exam.
- The exam has 150 four-option questions (100 scored, 50 pretest) with three hours allowed.
- Procedures is the largest domain at approximately 50%; every domain percentage is an approximation.
- Eligibility requires active NMTCB, ARRT(N) or CAMRT credentials plus at least 700 documented nuclear-cardiology clinical hours.
Which NCT This Cheat Sheet Covers
"NCT" is an acronym shared by several unrelated credentials, so let's pin this down before any facts appear. This page is about the Nuclear Cardiology Technologist specialty credential offered by the Nuclear Medicine Technology Certification Board (NMTCB). It is a technologist-level specialty added on top of an existing nuclear-medicine certification. It is not the physician-level CBNC examination, and it is not the separate PET specialty exam, although the NMTCB does offer a combined application for PET and NCT (covered below).
If you want the broader background first, see What Is NCT? and What Does NCT Stand For?. For the full study plan, the NCT Study Guide goes deeper than a one-page review can.
Exam Format at a Glance
| Item | What to Know |
|---|---|
| Issuing body | Nuclear Medicine Technology Certification Board (NMTCB) |
| Test administrator | IQT, Inc. (Iso-Quality Testing), on-demand computer testing at test centers |
| Authorization window | Normally six months |
| Questions | 150 four-option multiple-choice items |
| Scored vs. pretest | 100 scored, 50 pretest |
| Time allowed | Three hours |
| Book policy | Closed-book |
| Navigation | Must answer before advancing; may flag, review, and change answers |
| Calculator | Bring your own noiseless, battery- or solar-powered calculator with no text-storage capability; none is supplied |
| Blueprint | NCT Content Outline 2023, effective October 1, 2023 |
Two format details deserve emphasis. First, the 50 pretest items are unscored but indistinguishable from scored ones, so treat every question as if it counts. Second, because you must answer each question before advancing, you cannot skip and return blindly. Use the flag feature for anything you want to revisit, commit to your best answer, and move on.
Domain Weights: Where the Points Live
The five domains come straight from the NMTCB's NCT Content Outline 2023. Every percentage is approximate, so treat them as study-priority guides rather than exact item counts.
| Domain | Approx. Weight |
|---|---|
| 1. Procedures: Indications, Instrumentation, Acquisition, and Processing | ~50% |
| 2. Anatomy/Physiology/Pathology | ~10% |
| 3. Radiopharmaceuticals and Interventional Drugs: Properties, Indications, Contraindications, Dosages, Biodistribution, and Adverse Effects | ~15% |
| 4. Non-Pharmacologic (Exercise) Stress Testing | ~15% |
| 5. Patient Care | ~10% |
The skew is obvious: half the exam is Procedures. A candidate who is strong on Procedures and merely adequate elsewhere is in a far better position than one with balanced but shallow knowledge. For a domain-by-domain breakdown, read the NCT Exam Domains guide.
Procedures: The 50% Domain
Domain 1 bundles four things that many candidates study separately: indications, instrumentation, acquisition, and processing. The exam expects you to connect them. A question may start with a clinical indication and ask which acquisition protocol follows, or present an artifact on a display and ask which processing or acquisition error caused it.
Domain 1: Procedures: Indications, Instrumentation, Acquisition, and Processing
This is where most scored items come from, so build your review around the full workflow of a myocardial perfusion study.
- Indications: know which clinical scenarios justify perfusion imaging and which patient questions each study type answers.
- Instrumentation: gamma camera components, collimation, energy windows, detector configurations, and routine quality control.
- Acquisition: patient positioning, gated versus non-gated protocols, orbit and framing choices, and timing relative to injection.
- Processing: reconstruction, reorientation, and quantitative display; recognizing how processing choices alter the final images.
- Artifact recognition: motion, attenuation, and misregistration, including how to tell patient-related causes from equipment-related ones.
Question Style to Expect
Procedure items tend to be applied rather than purely recall-based. You may be handed a scenario (a patient history, a protocol choice, an image problem) and asked for the best next action. Practice reading each stem for the one detail that changes the answer, such as a patient factor that alters the acquisition or a quality-control finding that invalidates a study. Our practice tests are built to rehearse this scenario-to-decision pattern.
Radiopharmaceuticals and Stress Testing (15% Each)
Domains 3 and 4 together account for roughly 30% of the exam, and both are highly memorizable, which makes them efficient places to bank points.
Domain 3: Radiopharmaceuticals and Interventional Drugs
The domain title is itself a checklist of what you must know for each agent: properties, indications, contraindications, dosages, biodistribution, and adverse effects.
- Build a one-row-per-agent grid covering every perfusion radiopharmaceutical and every interventional (stress) drug you may handle.
- For interventional drugs, pair each agent with its mechanism, its contraindications, its common adverse effects, and the reversal or rescue agent where applicable.
- Know biodistribution well enough to explain why an image looks the way it does, since this links back to Procedures questions.
- Rehearse dose-related and decay-related calculations with the calculator you plan to bring.
Domain 4: Non-Pharmacologic (Exercise) Stress Testing
This domain covers the exercise side of stress testing, distinct from the drug-based side that falls under Domain 3.
- Protocols and how workload progresses during a test.
- Patient preparation, including what to confirm before the patient steps on the treadmill.
- Monitoring: what you track during exercise and recovery, and the findings that mean a test should be stopped.
- Endpoints and adequacy of the exercise effort, and what that means for the timing of radiopharmaceutical injection.
A common trap is blending the two stress domains in your notes. Keep a clean separation: exercise stress is one block, interventional drugs another. The exam tests each on its own terms, though scenario questions can combine them when a patient cannot complete adequate exercise.
Anatomy/Physiology/Pathology and Patient Care
These two domains are the smallest, at approximately 10% each, but they carry real value because they underpin everything else.
Domain 2: Anatomy/Physiology/Pathology
- Cardiac anatomy and coronary distribution, since perfusion image interpretation depends on mapping territories to vessels.
- Cardiac physiology during rest and stress, including what exercise and pharmacologic stress do to flow and demand.
- Pathology relevant to nuclear cardiology, such as ischemia versus infarction, and how each presents on perfusion imaging.
Domain 5: Patient Care
- Patient identification, screening, and informed communication before a study.
- Safety during stress procedures and during radiopharmaceutical handling.
- Recognizing and responding to adverse events and emergencies in the lab.
- Professional conduct and documentation expectations.
Because these are "easier-feeling" domains, candidates sometimes under-study them. Resist that. Roughly one question in five lives here, and they are often the quickest to answer correctly if you have reviewed them even once.
Eligibility, Fees, and Registration Mechanics
Who Can Sit for the Exam
NCT is a specialty credential, so you must already hold a qualifying primary certification. Eligibility requires:
- Active certification through NMTCB, ARRT(N), or CAMRT in nuclear medicine, and
- At least 700 documented nuclear-cardiology clinical hours earned as a certified or registered technologist.
Those hours must cover radiopharmaceutical handling, imaging, and injections where permitted, performed under the qualifying physician or direct certified-technologist supervision the NMTCB specifies. Employers verify the experience, so line up your supervisor early. The details are in our NCT requirements guide.
Fees
| Item | Amount | Notes |
|---|---|---|
| Standard NCT application/exam fee | $225 | Nonrefundable |
| February 1-28, 2026 promotional fee | $150 | Expired; do not plan around it |
| PET + NCT combination application | $350 | Both exams remain distinct; completion window is three calendar years from application |
| CE recertification application | $250 | For the 42-hour CE pathway |
Once approved, you schedule through IQT, Inc., and your authorization normally runs about six months. Check availability for your preferred test center early. Our guide to NCT exam dates and scheduling walks through the process.
Seven-Year Certification and Recertification
NCT certification lasts seven years. Throughout that cycle you must pay annual registration and keep your underlying nuclear-medicine credential active. Losing the primary credential puts the specialty at risk.
At the end of the cycle you have two routes:
- Re-examination by retaking the NCT exam, or
- 42 NCT-specific CE hours earned during the seven-year cycle, with a $250 application fee.
Two clarifications prevent common confusion. The 24 CE credits awarded for passing a specialty exam are separate from the 42-hour NCT CE recertification pathway; they are not interchangeable. And there is no separate NCT biennial CE requirement, though your primary certification's requirements still apply. If a specialty credential has expired, the CE route is closed and re-examination is required.
Scheduling Your Review by Domain Weight
Generic study advice is plentiful. What matters for this exam is allocating time in proportion to weight and sequencing topics so they reinforce each other. Here is one way to order an eight-week review for a working technologist.
Anatomy/Physiology/Pathology and Patient Care
- Rebuild coronary territories and stress physiology first, since every later domain references them.
- Review patient-care and safety content while it is fresh and light.
Radiopharmaceuticals and Interventional Drugs
- Complete the per-agent grid: properties, indications, contraindications, dosages, biodistribution, adverse effects.
- Drill calculations with your exam-day calculator.
Non-Pharmacologic (Exercise) Stress Testing
- Cover protocols, monitoring, and endpoints, then cross-link to drug-based stress from Weeks 3-4.
Procedures: Indications, Instrumentation, Acquisition, and Processing
- Spend the largest block here because it is roughly half the exam.
- Work through acquisition-to-processing chains and artifact troubleshooting.
Timed mixed practice
- Simulate the three-hour, scenario-heavy format and review every miss by domain.
Why this order? The small domains give you the vocabulary and physiology that make Procedures questions interpretable, and putting Procedures last lets you apply everything at once. If your clinical exposure is already heavy on imaging, you could compress the early weeks and extend Procedures. For a sense of how demanding candidates find each area, read How Hard Is the NCT Exam?.
Exam-Day Logistics Checklist
- Calculator: bring a noiseless, battery- or solar-powered model with no text-storage capability. The test center will not provide one.
- Authorization: confirm your scheduling within the roughly six-month window so you aren't forced into a rushed date.
- Pacing: 150 questions in three hours leaves just over a minute per item, so don't let a single hard scenario eat several minutes.
- Flagging: since you must answer before advancing, give your best answer, flag it, and return if time allows. Answers can be changed on review.
- Pretest items: 50 are unscored. You can't identify them, so give every question full effort.
Key Takeaway
Let the weights drive your hours: roughly half of your review should be Procedures, about 30% split between radiopharmaceuticals and exercise stress testing, and the remaining 20% shared by anatomy/physiology/pathology and patient care. Verify any figure against the NMTCB's own materials, as the percentages are approximate.
Frequently Asked Questions
No. This NCT is the Nuclear Cardiology Technologist specialty from the NMTCB. The physician CBNC examination and the separate PET specialty exam are different credentials, though a combined PET + NCT application exists that still requires two distinct exams.
The exam has 150 four-option multiple-choice questions, of which 100 are scored and 50 are pretest items. You have three hours, and you may flag, review, and change answers before finishing.
Procedures: Indications, Instrumentation, Acquisition, and Processing, at approximately 50%. Radiopharmaceuticals and Interventional Drugs and Non-Pharmacologic (Exercise) Stress Testing follow at roughly 15% each. Our domains guide expands on all five.
The standard nonrefundable application/exam fee is $225; the February 2026 $150 promotion has expired. The credential lasts seven years with annual registration, and you recertify by exam or by 42 NCT-specific CE hours with a $250 application fee.
That depends on your role and employer, since nuclear cardiology labs value documented specialty competence. See our ROI analysis and salary guide for a qualitative look, and test your readiness with the NCT practice tests.