PLAB 2 Medication Error Station: How to Approach, Mark Scheme & Free Practice

Hold these differentials in your head

Bracket the deadly causes first. If you fail to consider any of these in your reasoning out loud, the clinical-management domain will suffer.

• Wrong drug given to an allergic patient
  The classic variant - a penicillin prescribed despite a documented allergy. Your first job is safety: establish whether any dose reached the patient and check for reaction signs before the disclosure conversation. If the dose was intercepted, say so clearly and credit whoever caught it without shifting blame.
• Wrong dose administered
  The drug was correct but the dose was not. Handling shifts towards explaining what the overdose or underdose means clinically, what monitoring or antidote has been arranged, and how long observation will continue. Be specific about consequences - vague reassurance reads as evasion.
• Missed investigation result
  A blood test or scan was reported abnormal but nobody acted on it. The apology must cover the delay itself, and the plan must show the result has now been acted on - repeat testing, urgent referral, senior review - with a concrete timeline the patient can hold you to.
• Delayed diagnosis disclosure
  The error is that a diagnosis was made or missable earlier. Expect grief and 'what if' questions alongside anger. Acknowledge the lost time honestly, avoid speculating about whether the outcome would have differed, and focus on what is being done now and how the case will be reviewed.
• Error made by a colleague
  You did not make the mistake, but you are the one disclosing it. Take collective responsibility on behalf of the team - 'we got this wrong' - and never name, blame or excuse the individual. The examiner is watching for scapegoating, which is a safety-critical fail.
• Near-miss disclosure
  The error was caught before any harm occurred, as in the intercepted penicillin dose. Do not let 'no harm done' become the message. The relative's fear of what could have happened is legitimate - validate it, disclose fully, and still commit to the incident report and system fixes.
• The angry relative
  Any of the above delivered to a furious parent or spouse. Let them vent without interrupting, validate the anger explicitly, and resist every urge to defend or explain too early. Most angry relatives de-escalate once they hear a sincere apology and a concrete plan; they re-escalate the moment you minimise.

Step-by-step approach

This is the structure that scores. You do not need to follow it verbatim, but every numbered block below maps to a cluster of marks in the rubric.

1. 1. Prepare - check the facts before you walk in

   You cannot disclose what you do not understand. Use the task card and any notes to fix the sequence of events in your head.

   • Confirm exactly what happened: which drug, which dose, whether it was actually given or intercepted.
   • Confirm the patient's current condition and what has already been done - a safe alternative started, senior aware, reaction treated.
   • Know who you are speaking to and confirm their identity and relationship when you enter.

2. 2. Open, build rapport and assess what they know

   Start with them, not with your script. An open invitation earns marks and tells you where to pitch the disclosure.

   • Introduce yourself with name and grade, confirm who they are, and thank them for waiting.
   • "I understand something happened with the medication - could you tell me what you know so far?"
   • Let them talk. If they are angry, let them vent without interrupting or correcting details mid-flow.

3. 3. Disclose honestly and early, with a clear apology

   This is the heart of the station. The GMC's duty of candour requires you to be open the moment something has gone wrong - and an apology is not an admission of liability.

   • State plainly what happened: "A penicillin-based antibiotic was prescribed in error, despite the allergy being on record."
   • Apologise sincerely and personally: "I am truly sorry this happened." Say it once clearly rather than scattering half-apologies.
   • Take responsibility on behalf of the team. Never blame the nurse, the prescriber or 'the system' as a deflection.

4. 4. Explain what happened and what it means, in plain terms

   Translate every drug name and every consequence. Jargon at this moment reads as hiding behind language.

   • Explain the error in one or two lay sentences - for example, that co-amoxiclav contains penicillin.
   • Be honest about what could have happened, without dramatising it, and be clear about what actually did.
   • If no drug reached the patient, say so explicitly and credit the vigilance that prevented it.

5. 5. Explain the immediate safety steps already taken

   Safety before process. The relative needs to hear the patient is safe right now before they can hear anything about reports.

   • Confirm the patient has been reviewed and is stable, and that any reaction was or would be treated immediately.
   • Confirm a safe alternative treatment has been started and the patient is responding.
   • Explain the allergy is now flagged prominently on the chart and records so this cannot recur for this patient.

6. 6. Explain what happens next - the SPIES backbone

   Seek information, Patient safety, Initiative, Escalate, Support. The examiner wants to hear the formal machinery, framed as learning rather than punishment.

   • The incident will be formally reported through the hospital's patient-safety reporting system so it can be investigated and learned from.
   • Your senior or consultant will be informed, and the doctor who prescribed will be spoken to and supported to understand what went wrong.
   • Explain how recurrence is prevented - allergy alerts, prescribing checks - without promising the impossible.

7. 7. Respond to anger with acknowledgement, not defensiveness

   The simulated relative is often scripted to stay guarded until you validate the emotion. Defensiveness re-escalates; acknowledgement de-escalates.

   • "You are absolutely right to be angry. This should not have happened."
   • Name the fear underneath the anger - for a parent, what could have happened to their child.
   • Do not argue with any detail of their account, even if it is slightly wrong. Correct facts gently and only where it matters.

8. 8. Offer the complaints route, commit to follow-up, and close

   Signposting PALS is a mark, not a surrender. Treat the right to complain as something you support, not a threat to defuse.

   • Explain how to contact PALS and make a formal complaint if they wish, and offer to help them do it.
   • Offer a further conversation with your consultant and commit to keeping them updated on the investigation.
   • Summarise, invite final questions, check understanding, and thank them for raising it.

Common pitfalls

• The hedged non-apology - "I'm sorry you feel that way" or "mistakes happen". Apologise for the error itself, clearly and once.
• Blaming the nurse, the prescribing doctor or 'the system' to deflect responsibility - scapegoating an individual is a safety-critical fail.
• Forgetting to check the patient is currently safe - ask how they are now, whether any drug was given, and about any reaction signs before anything else.
• Drowning the apology in process talk - leading with Datix, investigations and committees before the human being in front of you has heard "I am sorry".
• Promising it will never happen again. You can commit to reporting, learning and specific safeguards, but an absolute guarantee is dishonest.
• Minimising a near-miss because no harm occurred - "no harm done" dismisses a legitimate fear and undermines the whole disclosure.
• Getting defensive or interrupting when the relative is angry - let them finish, validate, then respond.
• Withholding the complaints route or treating a mention of formal complaint as a threat rather than a right you actively support.

Frequently asked questions