PLAB and UKMLA: how the exam tests clinical reasoning

The candidate stands in front of a door at the Clinical Assessment Centre in Manchester. He reads the instruction posted outside: a 58-year-old man arrives at the emergency department with chest pain for two hours. The task is to take the history, examine the patient and discuss management. He has a few seconds to organize hypotheses. When the timer announces, he enters, confirms his own name and GMC number and begins the consultation.

NEXO is a daily medical diagnosis game: one clinical case a day, six progressive clues, and ICD-10 proximity feedback across five levels.

This scene sums up what PLAB 2 demands: clinical reasoning shown out loud, in front of a simulated patient, with time counted and communication at the center of the task. This text explains what PLAB and the UK Medical Licensing Assessment (UKMLA) are, how the two parts of the exam work, how the stations assess reasoning, what studies say about these exams and how to train. At the end there is a table, frequently asked questions and a checklist for the final stretch.

Key points

• The PLAB, Professional and Linguistic Assessments Board, checks whether doctors trained outside the United Kingdom have the knowledge and skills to practice medicine in the country; it has two parts (GMC).
• The UKMLA is the United Kingdom medical licensing assessment: students at British schools take it as part of the course, and international doctors take the PLAB, which is aligned with the same content map (GMC, MLA).
• PLAB 1 is an applied knowledge test with 180 multiple-choice questions in three hours; PLAB 2 is a clinical and professional assessment in the OSCE style, with 16 scenarios of eight minutes each (GMC, PLAB 1; GMC, PLAB 2).
• In PLAB 2, each station is marked in three domains: data gathering and technical skills; clinical management skills; and interpersonal skills (GMC, PLAB 2).

What PLAB and the UKMLA are

The General Medical Council, the GMC, is the regulator of doctors in the United Kingdom. For doctors who trained outside the country and want to register, one of the routes is the PLAB: an exam in two parts that checks whether the candidate has the knowledge and skills expected of a doctor at the level of Foundation Year 2, F2 (GMC).

The UK Medical Licensing Assessment, the UKMLA, is the broader framework. It tests the knowledge, skills and core behaviors needed to practice safely in the United Kingdom. All students graduating from British medical schools must pass it as part of the course before entering the register. International doctors take the PLAB, which is aligned with the UKMLA. Both groups are assessed on the same content map, whose themes include readiness for safe practice, management of uncertainty and person-centered care. The map is a living document, updated by the GMC (GMC, MLA).

The two pieces of the MLA in British schools

In schools in the United Kingdom, the MLA has two components. The Applied Knowledge Test, the AKT, is a written test of applied clinical knowledge, built centrally by the Medical Schools Council and applied locally, with regulation and quality assurance by the GMC. The MSC proposal was presented in May 2021 and approved in June 2021 (GMC, AKT). The Clinical and Professional Skills Assessment, the CPSA, is a performance-based assessment, defined and applied by each school in the penultimate or final year, also with GMC quality assurance. The CPSA requirements were published in September 2019 and reissued in March 2021 (GMC, CPSA).

For the international doctor, the parallel with the MLA is one of alignment, not identity: the GMC treats the PLAB as compliant with the MLA, and PLAB 1 and PLAB 2 sit on the same content map as the AKT and the CPSA of British schools. Those also preparing for other licensing exams can compare the formats in the texts on how the USMLE Step 2 CK assesses clinical reasoning, how the MCCQE assesses clinical reasoning and how the AMC Clinical Exam assesses clinical reasoning.

How PLAB 1 works

PLAB 1 is an applied knowledge test, the AKT, with 180 multiple-choice questions in three hours. Each question presents a short scenario and five options. Answers must follow current UK best practice and the equipment available in the country, based on published evidence, and not on local practices from other health systems (GMC, PLAB 1).

The content covers common, important and acute conditions seen at the F2 level, as well as long-term conditions in primary care. It does not include the advanced duties of a general practitioner. The exam is aligned with the MLA (GMC, PLAB 1).

When and where

There are four sessions per year: February, May, August and November. In the UK, the venues are in Belfast, Birmingham, Cardiff, Edinburgh, London and Manchester. In the European Union, there are venues in Dublin and Madrid. There are also overseas sittings through the British Council. Places are limited and there may be a wait. Changes to PLAB 1 are planned for 2027 (GMC, PLAB 1 dates).

Attempts

After four failures, a fifth and final attempt requires a formal request, plus 12 months of clinical practice or a postgraduate qualification. After the fifth, there are no further attempts (GMC, attempts).

In PLAB 1, reasoning shows up in reading the scenario: the candidate needs to recognize what the question asks, rule out distractions and choose the safest course of action or diagnosis according to British practice. Anyone who trains with multiple-choice cases, as in USMLE Step 2 CK or the MCCQE, already knows this kind of pressure. The difference lies in the content map and the NHS context.

How PLAB 2 works

PLAB 2 is a Clinical and Professional Skills Assessment, the CPSA: 16 OSCE-style scenarios, eight minutes each, that imitate a consultation or an acute ward. It covers what an F2 doctor may encounter. Drug names follow the most recent edition of the British National Formulary, the BNF. The candidate reads the instruction outside the room and a timer announces each change. There are at least two rest stations; the set lasts about three hours. The exam takes place at the two GMC Clinical Assessment Centres in Manchester. Dates run throughout the year and can only be booked after the PLAB 1 result (GMC, PLAB 2).

What may appear

The stations use simulated patients, telephone stations, models and mannequins, and a high-fidelity simulator. The candidate must be able to perform a rectal examination and a bimanual vaginal examination. The mental state examination counts as a clinical examination. Among the practical skills listed by the GMC are blood pressure measurement, venepuncture, cannulation, cardiopulmonary resuscitation, suturing, interpretation of electrocardiograms and radiographs, catheterization, cervical smear and disposal of sharps. Among the interpersonal skills are communicating bad news, obtaining consent and prescribing safely (GMC, how you will be tested).

At the start of each station, the candidate confirms their own name and GMC number. This detail seems bureaucratic, but it is part of the safety routine that the exam expects to see in every encounter (GMC).

How clinical reasoning appears in the stations

PLAB 2 does not ask what you know: it asks you to show what you would do. This places the exam at the top of Miller's pyramid, at the level of "shows how" and, in part, of "does" (Miller, 1990). The OSCE format, described by Harden and colleagues, structures this performance into short stations, with clear tasks and defined criteria (Harden et al., 1975; Harden and Gleeson, 1979). The AMEE guides on the OSCE summarize the theoretical basis and the practical organization of this type of exam (Khan et al., 2013, part I; Khan et al., 2013, part II).

Reading outside the room

Before entering, the candidate reads the instructions. This short time is the moment to build hypotheses, recall what the task asks for and decide where to start. Those who read too fast enter without a plan. Those who read too much lose the thread. A good habit is to note mentally the task, three hypotheses and the most important alarm sign, in the same spirit as the two-minute reading described in the text about the AMC Clinical Exam.

Hypotheses that guide the questions

In the history station, reasoning shows in the order of the questions. Instead of following a fixed script, the candidate tests hypotheses: if the chest pain could be an acute coronary syndrome, ask about radiation, sweating and risk factors; if it could be embolism, ask about sudden dyspnea and immobilization. The same applies to the physical examination: what you examine depends on what you suspect. The text about calibrating confidence in the diagnosis helps you avoid closing too early or staying too indecisive.

Reasoning spoken aloud

In several stations, the examiner expects to hear a summary: what you found, what you think and what you will do next. This summary is reasoning spoken aloud. Those who only ask questions and examine, without saying what they concluded, leave half the work invisible. Training this closing, with the structure of synthesis, likely diagnosis, differentials and next step, is one of the best investments for the PLAB 2. The text about metacognition in medicine explains why thinking about your own reasoning improves performance.

Communication as part of reasoning

Breaking bad news, obtaining consent and explaining a procedure are not soft-skill "extras": they are how reasoning reaches the patient. The SPIKES protocol, discussed in the post about how to teach breaking bad news, offers a useful structure. Empathy in the consultation and cultural humility come in the same package: the interpersonal skills domain of the PLAB 2 looks at exactly this.

How the station is scored

Each PLAB 2 station is marked in three domains: data gathering, technical and assessment skills; clinical management skills; and interpersonal skills. Besides the domain scores, the examiner gives a global judgment: Unsatisfactory, Borderline, Satisfactory or Good. This judgment enters the borderline regression method used to define the cut score of each station. The overall pass mark is the sum of the station cut scores plus one standard error of measurement. The candidate also needs to pass a minimum number of stations. Cut scores may differ between the two centres (GMC, results).

Feedback comes by domain and by ten statements: Consultation, Issues, Time, Findings, Examination, Diagnosis, Management, Rapport, Listening and Language (GMC, results). Reading this feedback carefully is the best way to know what to train next time.

Exam	Format	What it assesses
PLAB 1 (AKT)	180 questions in 3 hours	Applied clinical knowledge at F2 level, aligned with the MLA
PLAB 2 (CPSA)	16 scenarios of 8 minutes	History, examination, management and communication, with simulated patients and models
PLAB 2 domains	Three per station	Data gathering and technique; clinical management; interpersonal skills
MLA in UK schools	AKT + CPSA	Same content map used in the PLAB

What the studies say

There is published research on the PLAB and on the transition to the UKMLA. The results help to understand what the exam measures and where candidates usually struggle, without turning any single number into study advice.

PLAB and later performance

McManus and Wakeford linked PLAB results to later performance in the MRCP(UK) and the MRCGP. PLAB 1 scores correlated with later written exams, and PLAB 2 scores with clinical exams. The study also discussed what would be needed, in terms of cut score, to bring the performance of those who pass the PLAB closer to that of UK graduates (McManus and Wakeford, 2014). The practical reading is that the PLAB predicts something that matters later, and that the exam's standard is a matter of educational policy, not only of exam technique.

Agreement between examiners

Sam and colleagues studied the agreement between examiners from different UK schools when assessing simulated performances at scripted levels of fail, borderline, pass and good performance. Inter-rater agreement was high, which matters for the MLA CPSA, in which each school runs its own exam under common GMC requirements (Sam et al., 2021).

Study and content map

Baig and colleagues used mixed methods to investigate how medical students study in the clinical years as the UKMLA approaches and what this implies for the local curriculum. The risk described is prioritizing the MLA map at the expense of the school curriculum; the study's response was to build an online curriculum map aligned with the UKMLA and accessible to students and teachers (Baig et al., 2025).

Predictors in internationally trained doctors

A systematic review of observational studies gathered predictors of success and difficulty in internationally trained doctors, in qualifying exams, certification, matching and practice. Among the findings, the number of attempts at the PLAB appeared associated with later outcomes in the UK (Schabort et al., 2024). This reinforces the idea of treating each attempt seriously and reviewing the feedback before rescheduling.

How to train reasoning for the PLAB

Preparation for PLAB 1 and PLAB 2 calls for different routines. In the written exam, the training is to read scenarios, choose the best option according to UK practice and review the error. In the clinical exam, the training needs another person: a simulated patient, an observer and a timer.

For PLAB 1

Study from the MLA content map and UK best practice, not from another country's protocols. Use the BNF as your reference for medication names. After each block of questions, classify the error: lack of knowledge, rushed reading of the scenario, or choosing a course of action that would be correct in another system and not in the NHS. The text on retention of medical knowledge helps spread revision over time.

Put together a group for PLAB 2

Three people is a good number. One plays the candidate, another the simulated patient with a script, and the third observes with a checklist linked to the three domains. After each station, the three talk for a few minutes and swap roles. Playing the patient and the examiner teaches as much as playing the candidate.

Write short stations

Each group member can write stations based on common complaints: chest pain, shortness of breath, abdominal pain, fever in a child, depressed mood, communicating bad news. A good station has short instructions for the candidate, a script for the simulated patient and a list of key steps by domain. The text on how to write a clinical case for teaching offers a starting point. Narrative medicine reminds us that the patient's story is the raw material of reasoning.

Train the summary and communication

Record yourself summarizing cases in under a minute. Listen and cut what is left over. Also train bad news and consent stations, with the SPIKES structure. Ask the observer to note what was clear and what sounded rushed.

Train under pressure

On exam day, anxiety can shorten listening and speed up conclusions. Simulating a long block, with several stations in a row and rest breaks, helps you get to know your own reaction to fatigue. The text on acute stress and clinical reasoning explains what happens to thinking under pressure. The post on feedback in clinical cases shows how to get more from each round of feedback.

• Do at least one long PLAB 2 mock, with 16 stations and rest breaks.
• Respect the eight minutes and the reading outside the room.
• Ask the observer to note only three things per station: what went well, what was missing and one communication step that was forgotten.
• Review the notes the next day, not the same night.

Checklist for the final stretch

• I have read the official GMC pages on PLAB 1, PLAB 2 and the MLA.
• I know what the MLA content map covers and I study from it.
• I have practiced questions in the PLAB 1 format with short scenarios and five options.
• I can identify, in the reading outside the room, the task and three hypotheses.
• I have practiced history, examination, procedure and bad news communication stations.
• I have a ready structure for the final summary to the examiner.
• I practice confirming name and GMC number at the start of each station.
• I have already decided how I will use the rest stations to start fresh.

How NEXO helps train PLAB reasoning

NEXO offers one clinical case a day, with fictional cases with a realistic clinical presentation, to be solved in up to six clues. Each clue adds a piece of information, as a patient would who tells the story little by little, and you decide when you already have enough information to reach the diagnosis. It is a short differential diagnosis workout that fits between one PLAB 1 question session and the next, or between one block of PLAB 2 stations and the next, and that forces you to think before seeing the answer.

The format does not replace group practice with a simulated patient, but it exercises part of the reasoning that the history and management stations demand: putting data together little by little, keeping hypotheses open and not closing too early. To understand how scoring and the pace of the game work, see the NEXO Economy page. If you coordinate a study group, a league or a preparatory course and want to use cases with your class, check out NEXO Closer. Researchers in medical education can propose studies through NEXO Researcher, doctors who review cases take part through NEXO Curator and medical content creators can check out NEXO Creators.

Frequently asked questions

Is the PLAB the same thing as the UKMLA?

The PLAB is the route for doctors trained outside the United Kingdom and is aligned with the UKMLA. Students at British schools take the MLA as part of the course, with the AKT and the CPSA. Both groups are assessed on the same content map (GMC, MLA).

How many questions does PLAB 1 have?

There are 180 multiple choice questions in three hours, each with a short scenario and five options (GMC, PLAB 1).

How many stations does PLAB 2 have?

There are 16 eight-minute scenarios, in the OSCE style, with at least two rest stations and about three hours in total (GMC, PLAB 2).

Where does PLAB 2 take place?

At the two GMC Clinical Assessment Centres in Manchester. Dates can only be booked after the PLAB 1 result (GMC, PLAB 2).

Which domains does the examiner mark?

Data gathering, technical and assessment skills; clinical management skills; and interpersonal skills. There is also a global judgement used in the borderline regression method (GMC; GMC, results).

Where should I start studying?

With the MLA content map and the official PLAB 1 and PLAB 2 pages. Then put together a group for the clinical stations and review each mistake with feedback from the three domains. The case of the day on NEXO helps keep up the differential diagnosis habit between study sessions.

Want to train differential diagnosis every day, without losing your study rhythm? Play the case of the day on NEXO.

References

1. General Medical Council. Professional and Linguistic Assessments Board (PLAB). https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab
2. General Medical Council. Medical Licensing Assessment. https://www.gmc-uk.org/education/medical-licensing-assessment
3. General Medical Council. Applied Knowledge Test (AKT). https://www.gmc-uk.org/education/medical-licensing-assessment/uk-medical-schools-guide-to-the-mla/applied-knowledge-test-akt
4. General Medical Council. Clinical and Professional Skills Assessment (CPSA). https://www.gmc-uk.org/education/medical-licensing-assessment/uk-medical-schools-guide-to-the-mla/clinical-and-professional-skills-assessment-cpsa
5. General Medical Council. What is the PLAB 1 exam. https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-1-guide/what-is-the-plab-1-exam
6. General Medical Council. When and where can I take PLAB 1. https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-1-guide/when-and-where-can-i-take-plab-1
7. General Medical Council. What is the PLAB 2 exam. https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-2-guide/what-is-the-plab-2-exam
8. General Medical Council. How will you be tested (PLAB 2). https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-2-guide/how-will-you-be-tested
9. General Medical Council. Understanding your results (PLAB 2). https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-2-guide/understanding-your-results
10. General Medical Council. Are you eligible for an additional PLAB 1 attempt. https://www.gmc-uk.org/registration-and-licensing/join-our-registers/plab/plab-1-guide/are-you-eligible-for-an-additional-plab-1-attempt
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