MRCP PACES Ethics: Mastering Duty of Candour Conversations

Few moments in MRCP PACES make a candidate's heart sink faster than the examiner's instruction: 'The patient has asked to speak to you. You prescribed methotrexate daily instead of weekly, and she has taken three doses.' Suddenly, your carefully rehearsed medical consultation becomes an ethics station testing something many senior doctors still find difficult: being open and honest when things go wrong.

Duty of candour is a high-yield PACES topic because it sits at the intersection of clinical communication, clinical risk, and professionalism — three of the five PACES23 marking domains in a single conversation. This guide gives you the framework, the regulatory knowledge, the exact phrases, and the pitfalls that separate a clear pass from a borderline fail.

Why Examiners Love Duty of Candour Stations

The Royal College blueprint explicitly tests managing clinical risk and ethical judgement. A candour scenario allows examiners to assess, in ten minutes:

• Whether you prioritise patient safety before self-protection

• Whether you can say sorry properly — the single best marker of a safe senior doctor

• Whether you know what must be documented, reported, and escalated

• Whether you can hold a conversation that is simultaneously honest, empathetic, and non-defensive

Candour scenarios can surface in Station 2 or Station 5, and increasingly appear as a pivot inside an ordinary medical case — the history-taking station about breathlessness that ends with 'by the way, doctor, I was told my blood test last month was abnormal and nobody contacted me.'

The Two Duties You Must Distinguish

Candidates lose marks by conflating two related but distinct obligations. Know both cold.

1. The Professional Duty of Candour (GMC)

Every individual clinician owes this duty at all times. Under Good Medical Practice (2024) and the joint regulators' guidance Being Open and Honest When Things Go Wrong, you must:

• Tell the patient (or their representative) promptly when something has gone wrong that has caused or could cause harm or distress — this explicitly includes near misses

• Apologise — a real apology, not a deflection

• Explain what happened in plain language

• Take steps to remedy the problem where possible

• Report the incident through local systems and escalate appropriately

Key point for PACES: the professional duty applies even if the patient suffered no harm. A near miss still requires candour.

2. The Statutory (Organisational) Duty of Candour

Regulation 20 of the Health and Social Care Act 2008 (Regulated Activities) Regulations 2014 places a legal duty on healthcare providers in England (CQC-enforced) to act when a notifiable safety incident occurs — broadly, an incident involving:

• Death

• Severe harm

• Moderate harm

• Prolonged psychological harm (generally 28 days or more)

The provider must tell the person affected in person, as soon as reasonably practicable, apologise, provide an explanation of what is known, agree follow-up in writing, and keep a record. Scotland, Wales and Northern Ireland have equivalent or analogous arrangements.

Quick Comparison Table

The Medicolegal Pearl Examiners Expect

An apology is not an admission of liability. In England and Wales, section 2 of the Compensation Act 2006 makes this explicit. Candidates who hesitate to apologise because they fear legal consequences demonstrate exactly the misunderstanding the station is designed to expose. Say it clearly in the station: 'Saying sorry is not the same as accepting legal blame — it is the right thing to do.'

Conversely, concealing or minimising an error is a fitness-to-practise matter. The GMC treats cover-ups far more seriously than honest mistakes.

The SAFE-R Framework: A Scoring Structure You Can Rehearse

Under exam pressure, you need a sequence you can trust. Use SAFE-R:

S — Stabilise (safety first)

Before any conversation about error, ensure the patient is clinically safe now. In the methotrexate scenario: stop the drug, assess for toxicity (mouth ulcers, fever, bleeding), arrange urgent FBC and LFTs, consider folic acid and haematology advice. Treating first, talking second, demonstrates managing clinical risk.

A — Acknowledge and Apologise

Open the conversation honestly:

'Before we discuss anything else, I need to tell you something about your medication, and it isn't easy to say.'

Give the facts, own the error, and apologise with substance:

'When you were discharged, the methotrexate dose was written as daily rather than once a week. That was our error. You have taken it for three days at the wrong dose. I am genuinely sorry — this should not have happened.'

A real apology has three components: what happened, that it was wrong, and that you are sorry it happened. 'I'm sorry you feel that way' is a non-apology and scores poorly.

F — Facts (known so far, no speculation)

Explain what is known and what is not. Do not speculate about who is to blame or why — the investigation will establish that. Avoid blaming colleagues ('the pharmacist should have caught it') at all costs.

E — Explain Next Steps

Lay out what happens now:

• Immediate monitoring and treatment

• A formal incident investigation (serious incident framework), with a realistic timeline

• Who will contact them and when — and a written summary afterwards

• A meeting with the consultant, and with family if the patient wishes

• How to access the complaints service or PALS — offering this proactively shows transparency, not weakness

• Their right to seek independent advice; do not promise compensation

R — Record and Report

• Document the conversation in the notes: what was said, what was disclosed, the apology, the plan

• Complete an incident report (e.g., Datix)

• Escalate to your consultant — candour never means handling it alone

• Feed into systemic learning: e-prescribing safeguards, discharge checklist changes (this earns identifying long-term management strategies marks)

Handling the Emotional Fallout

Anger is expected — and welcome. A hurt patient who is angry is engaging with you. Respond with validation, not defence:

'You are absolutely right to be upset. I would feel the same. What I can promise is that we will look into exactly how this happened and I will make sure you are kept informed.'

Do not argue, do not justify, do not rush to systemic excuses ('the NHS is under pressure'). The mark scheme rewards the candidate who sits with the emotion and then moves the conversation forward to safety and resolution.

Mapping Candour to the PACES23 Marking Domains

One conversation, five domains. That is why these stations exist.

A Scenario Bank for Practice

1. Methotrexate prescribed daily instead of weekly — the classic; know the toxicity workup

2. Missed critical blood result — K+ of 6.7 mmol/L seen on review but not acted on; patient now unwell

3. Delayed diagnosis — a chest X-ray lesion reported months later

4. Wrong patient informed of a biopsy result — candour plus confidentiality overlap

5. AKI after NSAIDs in a patient with known CKD — prescribing error with a medication safety angle

6. A colleague's error — you must still be candid on behalf of the team; never cover for others

7. Near miss — wrong drug dispensed but noticed before administration; professional duty still applies

8. Failure to escalate a rising NEWS score with subsequent deterioration

9. A procedural complication inadequately consented for beforehand

Practise pivoting: any medication-related Station 5 case can turn into a candour conversation in the final two minutes.

Ten Pitfalls That Sink Good Candidates

1. Blaming others — 'the nurse gave the wrong dose' fails instantly

2. Minimising — 'these things happen, it's actually quite common'

3. Speculating about cause before investigation

4. The non-apology — 'I'm sorry you feel upset'

5. Talking before treating — forgetting immediate clinical safety

6. Over-promising — compensation, exact outcomes, investigation findings

7. No documentation or incident report mentioned at closure

8. Not escalating to a senior or offering a consultant meeting

9. Becoming defensive or arguing when challenged

10. Not offering written follow-up — a statutory requirement for notifiable incidents

A Ten-Minute Timing Template

Rehearse this skeleton with a study partner or an AI patient until the sequence is automatic — your cognitive load on exam day should go into clinical detail, not structure.

Rapid Revision Box

• Professional duty (GMC): any harm or distress and near misses — always disclose, always apologise

• Statutory duty (Reg 20, HSCA 2008 Regulated Activities Regulations 2014): notifiable incidents — death, severe/moderate harm, prolonged psychological harm (~28 days); in-person apology + written follow-up required

• Compensation Act 2006 s.2: an apology is not an admission of liability

• Sequence: Treat → Tell → Apologise → Explain → Support → Record → Report → Escalate

• Never: blame, minimise, speculate, or conceal — concealment is a fitness-to-practise matter

• Apology formula: what happened + it was wrong + I am sorry

Final Word

Duty of candour stations are not traps — they are an invitation to demonstrate the professional maturity PACES exists to certify. Examiners are not looking for a perfect doctor who never errs; they are looking for a future consultant who errs honestly, safeguards relentlessly, and apologises like they mean it. Master SAFE-R, learn the two duties, rehearse the sentences out loud, and walk into the station knowing that the hardest conversation in the exam is also the one you can most completely prepare for.

Good luck — and practise saying sorry out loud before exam day. It feels strange the first time. It should feel automatic by the fifth.