NMC CBT Format Explained: What to Expect on Exam Day

What Is the NMC CBT?
The NMC Test of Competence CBT (Computer Based Test) is a knowledge assessment that all internationally educated nurses must pass as part of the NMC registration process. It is delivered by Pearson VUE, a specialist exam delivery organisation, at test centres across the UK and in many international locations.
Before you sit the exam, understanding exactly what it contains and how it works is one of the most effective things you can do to reduce anxiety and perform at your best. This post covers the full exam format, the question types, timing, and the practical details of exam day.
The Two Parts of the CBT
The NMC CBT is divided into two distinct parts, each assessing different aspects of your nursing competence.
Part A: Numeracy (Drug Calculations)
Part A consists of 15 questions. Every question is a drug calculation problem — you will be given prescribing information and asked to calculate the correct dose or administration rate.
Part A tests four main calculation types:
- Tablet and capsule calculations: How many tablets or capsules to administer for a given prescribed dose
- Liquid medication calculations: What volume to administer when the available medication is in solution
- IV infusion rate calculations: The rate in mL/hour or drops/minute at which an infusion should run
- Weight-based dosing: Calculating a dose that is specified per kilogram of body weight
An on-screen calculator is provided. However, you should be comfortable enough with the arithmetic that you use the calculator to verify your work, not as your primary calculation tool.
Part A is marked separately from Part B. You must meet the required standard in Part A to pass the exam — strong performance in Part B cannot compensate for weak performance in Part A.
Part B: Clinical and Professional Knowledge
Part B consists of 85 questions covering the full range of nursing knowledge and professional practice relevant to UK registration.
All questions in Part B are single best answer questions. This format presents a clinical or professional scenario, followed by a question, and then four or five answer options. You must select the single best answer from the options given.
This format is specifically designed to test application of knowledge, not recall. The exam will not ask you to state a definition or reproduce a list. Instead, it presents a realistic nursing scenario and asks you to identify the most appropriate response, the most likely explanation, or the best course of action.
The eight topic areas covered in Part B are:
- Professional and ethical practice — the NMC Code, consent, confidentiality, professional accountability, UK legislation
- Communication and interpersonal skills — therapeutic communication, documentation, working with patients and families
- Nursing assessment and care planning — systematic assessment, the nursing process, recognising clinical deterioration
- Leadership, management and team working — delegation, escalation, scope of practice, working in multidisciplinary teams
- Safe and effective care environment — infection control, safeguarding, health and safety legislation
- Medicines management and pharmacology — legal frameworks for medicines, drug calculations applied to clinical scenarios, common drug classes
- Nutrition, fluid balance and metabolic care — nutritional assessment, fluid balance monitoring, metabolic conditions
- Management of the deteriorating patient — NEWS2, sepsis, basic life support principles, critical care recognition
Questions are distributed across all eight areas. There is no published breakdown of exactly how many questions come from each topic, but all eight areas are consistently represented. This means you cannot focus your preparation on two or three areas and expect to pass — the exam requires competence across the full range.
Practise Part B questions across all eight topic areas to identify which areas need the most work before your exam.
Total Question Count and Timing
| Section | Questions | Time |
|---|---|---|
| Part A — Numeracy | 15 | Approximately 30 minutes |
| Part B — Clinical Knowledge | 85 | Approximately 2 hours |
| Total | 100 | Approximately 2.5 hours |
The exact allocation of time within the exam may vary slightly. In practice, most candidates find Part A straightforward if they have prepared, leaving the majority of exam time for Part B. Do not rush Part A in an attempt to save time for Part B — each calculation question deserves careful attention.
The Single Best Answer Format
Understanding the single best answer format is important for your preparation and your exam technique.
In a single best answer question, there is only one correct answer. The other options may be:
- Clearly wrong — easily eliminable
- Plausible but incorrect — correct in some situations but not the specific scenario described
- Partially correct — covering part of what is required but missing a key element
- A common misconception — testing whether you have learned the right information or a commonly circulated but incorrect belief
The key to answering single best answer questions well is to read the scenario carefully before looking at the answer options. Form your own answer based on the clinical information given, then look for the option that matches your thinking. If you look at the options first, the plausible-but-incorrect distractors can pull you away from the right answer.
Pay particular attention to qualifying language in questions:
- "Most appropriate first action" — tests prioritisation, not just knowledge
- "Most important information to document" — tests what matters most, not just what is relevant
- "Most likely" — requires probabilistic clinical reasoning, not absolute rules
The Pearson VUE Test Centre Experience
The NMC CBT is delivered at Pearson VUE test centres. If you have never sat a Pearson VUE exam before, here is what to expect.
Before You Arrive
- Bring valid photo ID. The name on your ID must exactly match the name on your exam booking. Acceptable forms of ID include a passport, national identity card, or driving licence. Check Pearson VUE's current accepted ID list — requirements can change.
- Arrive at least 15 minutes early. The check-in process involves identity verification, a biometric palm vein scan (at most centres), and a security briefing. If you arrive late, you may not be admitted and you will forfeit your exam fee.
- Leave personal items outside. You will be required to store all personal items — phone, bag, jacket, keys, wallet — in a locker before entering the testing room. You cannot take anything into the testing room other than your ID.
- No food or drink is permitted in the testing room. If the exam is particularly long and you have a medical need, check with Pearson VUE before the exam about reasonable adjustments.
In the Testing Room
You will be seated at a computer workstation. The exam interface is straightforward: the question and answer options appear on screen, and you click to select your answer. You can navigate between questions using next and back buttons, and you can flag questions to review later.
An on-screen calculator is available for Part A. Scratch paper or a whiteboard may also be provided for working — ask the invigilator if this is not provided automatically.
Pearson VUE test centres are quiet and monitored by CCTV. Invigilators may be present in the room. You should not speak during the exam. If you have a technical problem, raise your hand and an invigilator will assist you.
After the Exam
Many candidates receive an unofficial result at the end of the exam session. This is a provisional indication only — the NMC is notified of your result by Pearson VUE and will communicate the official outcome to you. Check your NMC account and email for confirmation.
International Test Centres
A significant number of NMC CBT candidates sit the exam outside the UK — at Pearson VUE test centres in India, the Philippines, Nigeria, Ghana, Pakistan, and other countries. The exam format and content are identical regardless of where you sit it. The same standards apply.
If you are sitting outside the UK, note that:
- Test centre availability varies by country — book as far in advance as possible
- Time zone differences mean your NMC account notifications may arrive at unusual hours
- Payment for the exam fee (£83) is in GBP regardless of your location
Preparing for Exam Day
Study for the UK Context
The CBT specifically tests UK nursing standards. This means the NMC Code, UK legislation, NICE guidelines, and NHS clinical frameworks. If your preparation has been based on NCLEX materials (US-focused), textbooks from your home country, or informal PDFs circulated in preparation groups, you may be studying the wrong content.
Use NMC-specific preparation materials. Every practice question should be grounded in UK standards.
Do Enough Practice Questions
The single best answer format rewards candidates who have encountered many different question scenarios and understand the reasoning behind correct answers. Reading textbooks alone is not sufficient preparation for a format that tests application. Build your preparation around practice questions, not passive study.
Simulate Exam Conditions
Before your exam, sit at least one full practice session of 100 questions under timed conditions. This serves two purposes: it reveals any remaining knowledge gaps, and it builds the concentration and stamina you need to perform consistently over 2.5 hours.
Access the full NMC CBT practice question bank and simulate exam conditions with a timed mock session before you book.
Booking Your Exam
Once the NMC has confirmed your eligibility, you book the CBT directly through the Pearson VUE website or the Pearson VUE app. You will need your NMC candidate number and the voucher code provided by the NMC.
Exam slots at popular test centres — particularly in cities with large internationally educated nurse populations such as London, Birmingham, and Manchester, or at international centres in Mumbai and Manila — can book up weeks in advance. Do not wait until you feel completely ready before checking availability. Book a slot, then complete your preparation before that date.
Start Your Preparation
Understanding the exam format is the foundation of good preparation. Now that you know exactly what to expect, the next step is to begin practising the content.
Sign up for free access to NMC CBT practice questions and start building the knowledge and exam technique you need for exam day.