Updated

PLAB 2 ethics stations: capacity, confidentiality, DVLA and duty of candour

PLAB 2 ethics stations test whether you apply UK law and GMC guidance in a real conversation within eight minutes. This guide covers four topics: capacity (the Mental Capacity Act 2005: assume capacity, and test whether the person can understand, retain, use or weigh the information, and communicate a decision), confidentiality (including when to tell the DVLA), a colleague's error, and the professional duty of candour (tell, apologize, put right, explain). You are marked in the GMC's three domains, so you need the right decision and a respectful conversation.

Last checked Nov 1, 2026 against the GMC, GOV.UK and legislation.gov.uk pages listed under Sources.

The short version

  • Each PLAB 2 scenario lasts eight minutes and is marked in three domains: Data gathering, technical and assessment skills; Clinical management skills; Interpersonal skills [1][2].
  • Capacity: start from the presumption that the adult has capacity. An unwise decision is not proof that they lack it. Capacity is about one decision at one time [3][4][5].
  • Confidentiality: you can disclose without consent in the public interest if not disclosing may expose others to a risk of death or serious harm [6].
  • DVLA: the driver is legally responsible for telling the DVLA. If an unfit driver keeps driving and puts others at risk, you contact the DVLA promptly, tell the patient in writing, and record it [7][8].
  • Duty of candour: when something goes wrong with care, tell the person, apologize, offer a remedy or support, and explain the short and long term effects. Apologizing is not admitting legal liability [9].
  • A colleague's error: make the patient safe first, be open with the patient, and raise it through the proper route.

Capacity: the Mental Capacity Act 2005

The five principles (section 1)

The Act sets out five principles [3]:

  1. A person must be assumed to have capacity unless it is established that they lack capacity.
  2. A person is not to be treated as unable to make a decision unless all practicable steps to help them have been taken without success.
  3. A person is not to be treated as unable to make a decision merely because they make an unwise decision.
  4. An act done or decision made for a person who lacks capacity must be done or made in their best interests.
  5. Before acting, consider whether the purpose can be achieved as effectively in a way that is less restrictive of the person's rights and freedom of action.

The test (sections 2 and 3)

A person lacks capacity in relation to a matter if, at the material time, they are unable to make a decision for themselves because of an impairment of, or a disturbance in the functioning of, the mind or brain [4]. They are unable to make a decision if they are unable to [5]:

Can the person...How you check it in a station
(a) understand the information relevant to the decision?"Can you tell me in your own words what the operation is for?"
(b) retain that information?Come back to it a few minutes later: "What did I say could happen if you don't have it?"
(c) use or weigh that information as part of the process of making the decision?"What makes you feel that's the right choice for you?"
(d) communicate the decision (by talking, sign language or any other means)?Do they give a clear, consistent answer?

The GMC's consent guidance says medical professionals must start from the presumption that all adult patients have capacity, that a patient can only be judged to lack capacity to make a specific decision at a specific time, and only after assessment in line with legal requirements, and that the choice of treatment or care for patients who lack capacity must be of overall benefit to them [10].

Confidentiality and the DVLA

The GMC says disclosure without consent can be justified in the public interest if failure to disclose may expose others to a risk of death or serious harm [6]. Fitness to drive is a good example to practice. According to GOV.UK and the GMC guidance on fitness to drive [7][8]:

  1. The driver is legally responsible for telling the DVLA about a condition that may affect safe driving.
  2. You explain to the patient how the condition may affect their driving and that they have a legal duty to tell the DVLA.
  3. If the patient can't understand this (for example because of dementia), you tell the DVLA as soon as practicable.
  4. If a patient who is unfit to drive keeps driving, you try to persuade them to stop.
  5. If they continue and pose a risk of death or serious harm to others, you contact the DVLA promptly, tell the patient in writing that you have done so, and record it.

The DVLA decides on licensing, not you. In a station, you don't need to quote the exact time off driving for each condition: "You must not drive, and the DVLA will decide when you can drive again" is safe and accurate.

A colleague's error and the duty of candour

The GMC and NMC joint guidance "Openness and honesty when things go wrong: the professional duty of candour" (updated Dec 13, 2024) says that when something goes wrong with a patient's care and it causes, or has the potential to cause, harm or distress, you must [9]:

  • tell the person (or, where appropriate, their advocate, carer or family) that something has gone wrong
  • apologize
  • offer an appropriate remedy or support to put matters right (if possible)
  • explain fully the short and long term effects of what has happened

Apologizing does not mean admitting legal liability [9]. The guidance also asks you to be open and honest with colleagues, employers and regulators, and to take part in reviews and investigations [9].

When the error is a colleague's (a wrong dose given, a result missed, a wrong-site mark), a safe order in a station is:

  1. Patient safety first: assess the patient, put right what can be put right, and get senior help if needed.
  2. Be open with the patient: what happened, an apology, what you are doing about it, what it means for them.
  3. Raise it properly: tell your senior, report it through the local incident reporting system, and speak to the colleague directly and without blame.
  4. Don't cover it up and don't blame: "These things happen" or "It was the nurse's fault" both cost marks.

Decision table: what to do in common PLAB 2 ethics situations

Practice summary written by Confetto from the sources cited in each row. It is not legal advice.

SituationKey ruleWhat you do in the station
Adult refuses treatment and seems to understandPresume capacity; an unwise decision isn't lack of capacity [3]Explore reasons and fears, give information, offer alternatives, respect the decision, document, leave the door open
Confused patient refuses an urgent treatmentTwo-stage test: impairment of mind or brain, then the four abilities [4][5]Take all practicable steps to help (glasses, hearing aid, interpreter, a better time), assess for this decision; if they lack capacity, act in their best interests, least restrictive option [3]
Patient unfit to drive refuses to tell the DVLADriver's legal duty; doctor explains and persuades [7][8]Explain the legal duty and the risk; try to persuade; say what you will do if they keep driving
Unfit patient keeps driving and puts others at riskPublic interest disclosure [6][8]Contact the DVLA promptly, tell the patient in writing, record it
Patient can't understand the DVLA advice (e.g. dementia)Tell the DVLA as soon as practicable [7]Explain to the patient and family where appropriate, and inform the DVLA
Something went wrong with your own careDuty of candour [9]Tell, apologize, put right, explain effects; report; tell your senior
You notice a colleague's errorDuty of candour; openness with colleagues and employers [9]Make the patient safe, be open with the patient, tell your senior, report through local systems, talk to the colleague
A relative asks for informationThe patient's confidence comes firstCheck the patient agrees to you sharing; if the patient lacks capacity, follow the task information and their best interests

Worked example: a driver who won't tell the DVLA

Example written by Confetto for practice. It is not a real PLAB 2 station and not a GMC sample.

Candidate instructions (example): You are an F2 doctor in a GP surgery. Mr Tom Brennan, 52, was seen in A&E last week after a first seizure. The hospital letter says he has been advised not to drive and that he should inform the DVLA. He has come for a follow-up. Speak to him.

What the simulated patient knows (hidden): he drives a delivery van for work; he has driven twice since the seizure "just locally"; he hasn't told the DVLA; he is the only earner at home and fears losing his job; he thinks the seizure was "a one-off because I was tired". He will agree to stop if the doctor is clear, honest and helps him think about work, but he becomes defensive if lectured.

The walkthrough

0:00 to 1:30, open and find out what he knows

Doctor: Hello, Mr Brennan, I'm Dr Rahman, one of the doctors here. I've had the letter from the hospital about last week. How have you been since then?

Patient: Fine. It was a one-off. I was exhausted.

Doctor: What did they tell you at the hospital about driving?

Patient: Something about the DVLA. But I need the van for work.

1:30 to 3:30, explore and find the concern

Doctor: It sounds like work is a big worry. Can you tell me more?

Patient: If I can't drive, I can't work. I'm the only one earning. I've had to drive a couple of times already.

Doctor: Thank you for being honest with me. That sounds like a lot of pressure.

3:30 to 5:30, explain the risk and the law

Doctor: After a seizure, there's a risk of another one, and if that happened while you were driving, you or someone else could be seriously hurt or killed. The law says that you must tell the DVLA, and you must not drive until the DVLA says you can. The DVLA makes that decision, not me.

Patient: So you're going to report me?

Doctor: My hope is that you'll tell them yourself, and I'll help you with that. I do need to be honest with you: if you kept driving and I thought other people were at risk, I would have to tell the DVLA myself, and I would let you know in writing first. I'd much rather we sort this together.

5:30 to 8:00, plan and close

Doctor: Can we think about work? Is there anything you could do at your job that doesn't involve driving, while this is sorted? I can give you a fit note if you need time off, and I'd like to make sure your follow-up with the seizure clinic is booked. Would you be willing to contact the DVLA this week?

Patient: I suppose so. I'll do it tonight.

Doctor: Thank you, that's the right thing to do. If you have another seizure, or any seizure lasts more than five minutes, someone should call 999. I'll write in your notes what we've agreed. Can you tell me what you're going to do next?

What scores in each domain (labelled practice breakdown)

Sample breakdown written by Confetto for practice. It is not the GMC marking sheet.

GMC domainStrong performanceWeak performance
Data gathering, technical and assessment skillsFound out he had already driven, his job, his money worry and his belief it was a one-offNever asked if he'd driven since; missed the work pressure
Clinical management skillsClear "no driving", the patient's legal duty to tell the DVLA, honest about when the doctor would tell the DVLA, help with work, follow-up, seizure safety-netting, documentationSaid "it's up to you"; or threatened to report him in the first minute; no follow-up
Interpersonal skillsNon-judgmental, acknowledged his pressure, honest without lecturing, checked understandingLectured; judgmental tone; argued instead of exploring

Practice this station

Confetto isn't affiliated with the GMC.

Frequently asked questions

What are the five principles of the Mental Capacity Act 2005?

Assume capacity unless it is established otherwise; take all practicable steps to help before deciding someone can't decide; an unwise decision doesn't mean lack of capacity; act in the best interests of a person who lacks capacity; and consider the less restrictive option [3].

How do you assess capacity in a PLAB 2 station?

Check whether there is an impairment of, or disturbance in the functioning of, the mind or brain, and then whether the person can understand, retain, use or weigh the information, and communicate their decision [4][5]. Assess it for the specific decision, and help them first (plain words, time, glasses, hearing aids, an interpreter).

When should a doctor tell the DVLA without the patient's consent?

When a patient who is unfit to drive continues to drive and poses a risk of death or serious harm to others, after you have tried to persuade them to stop. Contact the DVLA promptly, tell the patient in writing, and record it [7][8].

What is the professional duty of candour?

When something goes wrong with care that causes or could cause harm or distress, you tell the person, apologize, offer an appropriate remedy or support, and explain the short and long term effects. Apologizing is not admitting legal liability [9].

What should I do if I see a colleague make a mistake?

Make the patient safe first, be open with the patient, tell your senior, report it through local systems, and talk to the colleague. The candour guidance asks doctors to be open with colleagues and employers and to take part in reviews and investigations [9].

Can a patient refuse treatment even if it seems unwise?

Yes, if they have capacity for that decision. The Mental Capacity Act says a person is not to be treated as unable to make a decision merely because the decision is unwise [3].

Sources

Read on November 1, 2026.

  1. What is the PLAB 2 exam?, General Medical Council
  2. How will you be tested?, General Medical Council
  3. Mental Capacity Act 2005, section 1 (The principles), legislation.gov.uk
  4. Mental Capacity Act 2005, section 2 (People who lack capacity), legislation.gov.uk
  5. Mental Capacity Act 2005, section 3 (Inability to make decisions), legislation.gov.uk
  6. Confidentiality: disclosures for the protection of patients and others, General Medical Council
  7. General information: assessing fitness to drive, GOV.UK (DVLA)
  8. Confidentiality: patients' fitness to drive and reporting concerns to the DVLA or DVA, General Medical Council
  9. Openness and honesty when things go wrong: the professional duty of candour (GMC and NMC joint guidance, updated Dec 13, 2024), General Medical Council
  10. The seven principles of decision making and consent, General Medical Council