MRCP PACES Mock Circuits: Rehearsing Exam Day Online
You can memorise every classic PACES case list, score highly on single-station practice, and still unravel halfway through the real exam. Why? Because the MRCP PACES is not five isolated encounters - it is a circuit, and the current PACES23 format makes the circuit demands sharper than ever: five stations, eight minutes each, two examiners watching every station, and only brief gaps between them.
Most candidates preparing online practise stations. Very few practise circuits. This guide shows you how to build full mock circuits at home - with study partners, AI simulated patients, or a blend of both - so that by exam day the rhythm of the real thing feels rehearsed rather than threatening.
Why Practising Stations Is Not the Same as Practising a Circuit
Single-station practice builds knowledge. Circuit practice builds performance, and PACES scores performance. Consider what changes when stations run back to back:
Skill-switching under fatigue. One station may demand a crisp cardiovascular examination; the next asks you to negotiate a refusal of treatment. Switching registers that quickly is exhausting if unrehearsed.
Timing drift compounds. Candidates who overrun Station 2 enter Station 3 flustered, start late, rush the examination, and miss signs. One poor station can contaminate the next.
Eight minutes is unforgiving. In the PACES23 format you must establish rapport, gather or examine, synthesise, and deliver a safe, sensible plan - all within eight minutes. Only repeated timed rehearsal teaches the internal clock.
Emotional reset is a skill. Walking out of a station that felt disastrous and walking into the next one composed is trainable. Untrained candidates carry their worst station around the whole circuit.
Think of it like sport: footballers do not only drill passes; they play full matches. PACES is your match day.
What a Real PACES23 Circuit Demands of You
Before building mocks, be clear about the target:
Reading and planning fast. You receive the station instructions moments before entering. You must extract the task, set two or three objectives, and walk in with a plan.
Flexible consultations. Modern PACES stations blend skills - an examination station may end with counselling; a history station may end with explaining your differential. Train stations as integrated encounters, not silos.
Structured presentations. When examiners ask for findings, differentials or management, they want organised answers: findings first, then a short differential, then investigations and management priorities.
Economy of movement. Examination technique must be smooth, respectful and complete enough - permission, positioning, exposure and a systematic approach - without burning your eight minutes.
Composure and courtesy throughout. Examiners score the whole candidate: how you speak to the patient, how you handle questions, and how you close safely with a plan and safety-netting.
Building Your Online Mock Circuit, Step by Step
Step 1: Build a station bank of 25-30 briefs
Write short station briefs yourself or adapt them from trusted case collections. Spread them across the blueprint:
Cardiovascular and respiratory examination cases
Abdominal, haematological and locomotor presentations
Cranial nerve, upper and lower limb neurology
Focused histories (breathlessness, weight loss, syncope, joint pain, diarrhoea, palpitations)
Communication and ethics scenarios (new diagnoses, capacity, confidentiality, driving regulations, complaints, treatment refusal)
Complex multi-morbidity consultations typical of Station 5-style encounters
Randomise the order so you never know what is coming - just like the real exam.
Step 2: Cast your patients
Study partners as surrogate patients on video calls work well for dialogue-driven stations. Give them the brief, the persona, and three facts they must reveal only if asked properly.
AI simulated patients are useful for high-volume communication reps - they never tire, never judge, and let you rehearse awkward conversations repeatedly. They are best for stations centred on dialogue rather than physical signs.
Housemates and family can hold simple scripted signs (a scar to find, a tremor to mimic, a limp to copy) purely so your examination routine stays oiled between real-patient practice sessions.
A sensible rule: use humans for anything involving examination or nuanced emotion; use AI for volume and repetition of the talking stations.
Step 3: Appoint your examiners
Recruit one or two peers also preparing for PACES. Rotate the examiner role so everyone practises and everyone learns the marksheet logic.
If you are practising solo, record everything on video and review immediately against a checklist. Self-marking is weaker than external marking - but far better than no marking.
Examiner feedback should be brief and behavioural: one thing to keep, one thing to change, per station. Long feedback after a circuit wastes the learning window.
Step 4: Enforce brutal timing
Each station runs for a hard eight minutes. When the timer sounds, you stop mid-sentence and leave - exactly as the real exam forces you to.
Between stations, allow yourself the same short gap the exam allows: read the next instructions, reset your posture, and walk in fresh.
Run all five stations in sequence with no restarts. The whole point is refusing yourself the comfort of a second attempt.
A Balanced Five-Station Circuit Example
| Station | Example case | Primary demands |
|---|---|---|
| 1 | Retired miner with breathlessness - examine the chest, present findings, answer questions | Examination technique, identifying signs, structured presentation |
| 2 | 58-year-old with episodic palpitations - take a focused history | Data gathering, risk stratification, summarising |
| 3 | Murmur picked up on an insurance medical - examine and explain next steps | Cardiovascular examination plus clear explanation |
| 4 | Patient with atrial fibrillation refusing anticoagulation - negotiate a safe plan | Communication, ethics, shared decision-making |
| 5 | Frail 82-year-old with falls, twelve medications and carer strain - prioritise | Clinical judgement, multi-morbidity, safety |
Rotate different cases through each slot every week. After six weeks, a bank of 30 briefs gives you dozens of unique circuits.
Marking the Mock: Feedback That Actually Changes Behaviour
A mock without structured feedback is theatre. Build a simple one-page review sheet and apply it to every station:
Safety. Did I say or do anything unsafe or potentially unsafe?
Structure. Did I open, gather, examine or counsel, and close with a plan and safety-netting?
Patient-centredness. Did I explore ideas, concerns and expectations? Did the patient get to speak?
Examination craft. Permission, positioning, exposure, draping, system and completeness - where relevant.
Answers to examiners. Were my responses organised - findings, differential, management - rather than a stream of consciousness?
Timing. Did I finish the station, or did the station finish me?
Track your scores across weeks on a simple spreadsheet. The trend matters more than any single mock. Most candidates see communication scores plateau first and examination fluency improve last - expect that pattern and do not panic.
A Six-Week Mock Circuit Ladder
Weeks 1-2: Rebuild the parts. Timed single stations, four to five per week. Re-learn routine structure and plug content gaps against the blueprint.
Weeks 3-4: Join the parts. One half-circuit (two to three stations) midweek and one full five-station circuit at the weekend. Start recording everything.
Weeks 5-6: Perform. Two full circuits per week under strict conditions - same time of day as your exam, smart clothes, hard timing, examiner feedback, no restarts. Rehearse your between-station reset ritual until it is automatic.
Final days: Taper. One light circuit early in the final week, then rest. Cramming new cases in the last 48 hours erodes confidence more than it builds competence.
Common Mock Circuit Mistakes to Avoid
Practising only favourite stations. Everyone loves the neurology case they can nail. The circuit forces breadth - so must your mocks.
Soft timing. Allowing a station to run to ten minutes trains a clock that will fail you on exam day.
Overly kind peers. Feedback that avoids hurting your feelings hurts your result. Ask explicitly for the one thing that would most improve the station.
Skipping the boring rituals. Hand hygiene, permission, draping and thank-you moments feel trivial - until they are absent under pressure.
No pivot practice. When a station derails, you need a rehearsed recovery: pause, name the issue, focus on the single most important priority, and rebuild around it.
All-screen practice. Online tools are superb for dialogue and structure, but make sure your hands remember what real examination feels like whenever you can access patients or colleagues.
Reviewing nothing. Recording a circuit and never watching it is wasted effort. Watch at least the two stations you felt worst about.
Combining Online Tools Without Losing Realism
The strongest online preparation blends three layers:
Peer video circuits as the backbone - realism, pressure, human marking.
AI simulated patients for volume - daily short reps on communication-heavy stations, awkward silences, angry relatives, uncertain diagnoses.
Guideline-anchored content revision so that when examiners probe management, your answers reflect current practice - heart failure, atrial fibrillation, asthma, COPD, diabetes and stroke pathways are perennially probed.
Use each layer for what it does best, and audit yourself weekly: is my weakness knowledge, technique, or performance under pressure? Then aim the next mock squarely at that weakness.
Exam-Day Transfer: Rehearsing the Ritual
In your final full mocks, rehearse everything around the stations, not just within them:
Wake at the time you will on exam day; eat what you will eat.
Wear the clothes you will wear - and practise examining in them.
Rehearse your station-entry routine: read instructions, breathe, set two objectives, walk in.
Rehearse your station-exit routine: thank the patient, accept the stop, let the station go, reset for the next one.
The candidates who perform best in PACES are rarely those who know the most. They are those whose best performance is the most reliable - and reliability is built circuit by circuit.
The Bottom Line
Single stations teach you PACES content. Mock circuits teach you PACES performance - the stamina, timing, flexibility and composure to deliver five safe, structured, empathetic consultations in under an hour. Build a station bank, cast your patients and examiners, enforce the clock, review ruthlessly, and climb the six-week ladder. Walk into the real circuit having already run it a dozen times, and the exam becomes just another morning on the ward.
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