Guides for UK first aid trainers.

Plan your scenario rotation before the day

The biggest mistake trainers make is leaving scenario selection too late. If you're assessing six candidates, you need at least six distinct scenarios — ideally eight to ten so you can rotate without repetition and adjust difficulty on the fly. Write them down the night before. Know which scenario you're going to give to which candidate, and have a backup ready for anyone who finishes early.

Scenarios should cover a spread of conditions: at minimum one cardiac, one bleeding, one fracture, and one unconscious casualty. For FAW, include a scenario with distractors — bystander interference, multiple casualties, or an environment that needs managing before you can treat.

Brief your actor carefully

Your moulage actor is the most important variable in assessment quality. They need to know exactly what to do, what to say, and — crucially — what not to say. Give them a one-page brief the night before covering the scene, their presenting complaint, how responsive to be, and what vital signs they should give if asked. A well-briefed actor makes assessment smooth. An improvising actor creates inconsistency and arguments about fairness.

Observe, don't intervene

Assessment is not the time for teaching. Your job is to watch, document, and score — not to hint, prompt, or rescue a floundering candidate. If a candidate is about to do something genuinely dangerous, intervene. Otherwise, let them work. Premature intervention invalidates the assessment and deprives the candidate of the experience of solving a problem independently.

Keep a clipboard. Write down what you see, not what you think they meant to do. Assessors who rely on memory are unreliable — especially by candidate four or five.

Manage the environment

Assessment scenarios should feel real. Use a different room from training if possible. Introduce noise, a task they were "in the middle of" when the casualty collapsed, and at least one other person who needs managing. Candidates who've only practised in quiet controlled environments often fall apart when something unexpected happens — which is exactly the point.

Debrief individually, same day

Give every candidate a verbal debrief before they leave — pass or not. Tell them specifically what they did well, one thing they should improve, and whether they've passed. Don't leave people wondering overnight. A good debrief takes five minutes and significantly improves candidate trust in your process.

What moulage is actually for

Moulage — the art of simulating injuries on a casualty actor — exists to create a physiological response in your candidates. When a person sees blood, their adrenaline rises, their hands move differently, and their thinking becomes less linear. That's the point. Training under mild stress produces better outcomes in real emergencies than training in clinical calm.

But moulage is only effective if it's credible. Candidates who don't believe the wound is real won't have the response you're looking for. Invest in quality materials and take the time to apply them properly.

Essential materials for any training kit

• Fake blood — both fresh (bright red) and older (darker, more viscous) for different wound ages
• Wound putty or latex — for raised lacerations and embedded objects
• Bruise makeup — yellow and purple tones for contusions and crush injuries
• Cling film — essential for burn scenarios, creates a realistic appearance and is safe on skin
• Barrier cream — always under any latex or putty on sensitive skin

Matching moulage to the scenario

The mistake most trainers make is over-moulaging. A dramatic compound fracture with exposed bone and litres of blood overwhelms candidates and draws their attention away from systematic assessment — which is the skill you're trying to train. For most scenarios, subtle is better: pallor from blood loss, diaphoresis (sweaty skin from shock), and a relatively modest wound that still requires treatment.

Reserve dramatic moulage for advanced scenarios where managing the psychological challenge is itself part of the learning objective.

Brief your actor on presentation

Moulage is only half the picture. The actor's behaviour is the other half. A convincing injury combined with an actor who is too calm or too dramatic both undermine the scenario. The actor should present at roughly the level you'd expect from someone in that condition — conscious with a serious bleed is frightened and pale, not calm and chatty.

First Aid Ninja's moulage guide feature generates detailed prep instructions for your actor alongside each scenario — including what to apply, where, and how the actor should behave. It saves significant preparation time.

Start with the environment, not the condition

Most trainers start with a medical condition and work backwards — "I'll do a fracture scenario." The problem with this approach is that real emergencies don't announce themselves. Start with an environment instead: a busy kitchen, a construction site, a school playground. Then ask what could realistically go wrong in that setting, and who might be affected. This produces scenarios that feel grounded rather than invented.

The three layers of a good scenario

Every effective scenario has three layers. First, the presenting condition — what is visibly wrong with the casualty. Second, an underlying complication — something the candidate might miss if they don't conduct a thorough secondary survey. Third, an environmental or social challenge — a bystander giving unhelpful advice, a noisy and chaotic scene, a casualty who refuses treatment.

Calibrate difficulty deliberately

Easy scenarios should be straightforward in presentation and environment — one casualty, clear mechanism, cooperative actor, minimal distractors. Medium scenarios introduce one complicating factor. Hard scenarios stack complications and require the candidate to prioritise, manage bystanders, and adapt when initial treatment doesn't work as expected.

Match the difficulty to where the candidate is in their training. Early in a course, hard scenarios demoralise rather than develop. Save them for the final practice session and assessment.

Write the expected actions before you run the scenario

If you can't write down what you expect a competent candidate to do, the scenario isn't clear enough to assess. Always write expected actions before the session — it forces you to think through whether the scenario is achievable, fair, and aligned with the syllabus. It also gives you a marking framework and prevents moving goalposts mid-assessment.

The time problem

Scenarios that take too long encourage candidates to pad. Scenarios that are too short don't allow assessment of ongoing management. For FAW, aim for eight to twelve minutes per scenario including debrief. For EFAW, six to eight is usually sufficient. Build in a natural end point — either the casualty recovers, deteriorates to a hand-off decision, or emergency services arrive.

The core difference in scope

First Aid at Work (FAW) is a three-day qualification that produces workplace first aiders competent to deal with a wide range of emergencies. Emergency First Aid at Work (EFAW) is a one-day qualification covering the essentials — primarily unresponsive casualties, CPR, choking, and basic wound and fracture management.

The scenarios you use need to reflect this difference. Using a complex multi-casualty scenario on an EFAW candidate sets them up to fail. Using a simple single-condition scenario on a FAW candidate doesn't adequately test their training.

What EFAW scenarios should cover

• Unresponsive casualty — with and without normal breathing
• CPR — adult, including AED use
• Choking — adult conscious and unconscious
• Severe bleeding — direct pressure and elevation
• Shock recognition and initial management
• Seizure — post-ictal recovery position
• Simple fracture recognition and support

What FAW scenarios should cover additionally

• Burns — superficial and partial thickness, including chemical and electrical
• Eye injuries
• Chest injuries — open chest wound, rib fracture, suspected pneumothorax
• Head and spinal injuries — including mechanism of injury assessment
• Diabetic emergencies — hypo and hyperglycaemia
• Anaphylaxis — with and without prescribed adrenaline auto-injector
• Multi-casualty scenarios — triage and prioritisation
• Poisons and substance incidents

Calibrating difficulty by qualification level

For EFAW, an "easy" scenario means the condition is clearly presented and the expected treatment is well within the syllabus. There is no need for hard EFAW scenarios — the qualification has a defined and limited scope.

For FAW, difficulty should increase progressively across the course. By assessment day, candidates should be comfortable with medium and hard scenarios — multiple issues presenting simultaneously, distractors, and conditions where the initial presentation is misleading.

A note on OFA

Outdoor First Aid qualifications overlap significantly with FAW but introduce environmental factors — hypothermia, altitude sickness, drowning, remote evacuation planning, and improvised equipment. If you deliver OFA alongside FAW and EFAW, your scenarios should reflect the environment: cold, remote, with limited resources and delayed emergency service response times.

First Aid Ninja covers all four qualification types and lets you set the environment — including wilderness, water, festival, and remote settings — so your OFA scenarios feel appropriately different from workplace scenarios.