CASC Exam Day: A Complete Strategy Guide for First-Time Candidates

The CASC exam is as much about strategy and mental resilience as it is about clinical knowledge. Many clinically competent trainees fail the CASC not because they lack knowledge, but because they misread instructions, manage time poorly, or let anxiety derail their performance. This guide covers everything you need to know to maximise your performance on exam day.

Before Exam Day

3-6 Months Before - Begin dedicated CASC preparation alongside any clinical work - Cover theory and frameworks: history taking structure, risk assessment framework, MSE, SPIKES, capacity assessment, Mental Health Act - Familiarise yourself with all station types: the Royal College publishes a blueprint of the types of stations that can appear - Start practising in pairs or groups — even informal 7-minute practice sessions build muscle memory

6-4 Weeks Before - Intensive practice phase: aim for at least 3-4 practice sessions per week - Practice with a variety of partners — each person role-plays differently, which builds adaptability - Video-record yourself and watch it back — this is uncomfortable but reveals habits you cannot see from inside the conversation - Focus on your weak station types — most candidates have 2-3 types they find hardest - Complete at least 2 full mock circuits (16 stations) under exam conditions with timing, reading time, and examiners providing written feedback

Final Week Preparation - Focus on revision of frameworks, not new content — this is too late to learn new material - Do 1-2 more practice stations focusing on your weakest areas, not on areas where you already feel confident - Review your weakest station types one more time - Ensure you know the venue location and travel arrangements — do a dry run if possible - Prepare your professional attire and lay it out - Gather essential documents: ID, confirmation email, any required paperwork

The Night Before - Lay out your clothes and essentials - Set multiple alarms (phone + backup) - Aim for 7-8 hours of sleep — this is non-negotiable for cognitive performance - Avoid last-minute cramming — trust your preparation; cramming the night before increases anxiety without improving performance - Avoid heavy meals and alcohol - Prepare a light breakfast and any snacks for the break between circuits

Understanding the Circuit Format

The CASC exam consists of 16 stations arranged in two circuits of 8 stations each: - Circuit A (morning): 8 stations — 4 minutes reading time before each station - Circuit B (afternoon): 8 stations — 90 seconds reading time before each station - Each station lasts 7 minutes - Some stations are "linked pairs" sharing a clinical scenario — the first station usually involves the patient, and the second may involve a relative, colleague, or examiner discussion - There is a break of approximately 2.5 hours between the two circuits (an extended lunch break)

Passing Criteria To pass the CASC you must meet two requirements: (1) pass a **minimum of 12 out of 16 stations**, and (2) meet or exceed the overall borderline regression score for the sitting. Receiving a "Severe Fail" in two or more stations triggers a review by the Examinations Sub Committee and may result in failure regardless of overall score. Aim to perform consistently across both circuits.

What Linked Pairs Mean for You In linked pairs, information from the first station carries into the second. This means: - Pay attention to details in the first station — you will need them - The second station often tests a different skill (e.g., first station is history taking, second is explaining the diagnosis to a relative or discussing management with a colleague) - If the first station goes poorly, you can still do well on the second — don't give up

Time Management Strategy

The 7-Minute Framework This is a flexible guide, not a rigid script. Adapt based on the station requirements:

• 0:00-0:30: Opening and rapport (introduction, clarify purpose, open question)
• 0:30-4:00: Core clinical task (the main assessment, history, or discussion)
• 4:00-5:30: Deeper exploration, secondary tasks, or risk assessment
• 5:30-6:30: Summarise, formulate, and outline management plan
• 6:30-7:00: Check understanding, answer questions, and close

Key Time Management Tips - **Wear a watch** and place it face-up on the desk or where you can see it without obviously checking it. Some candidates use a small travel clock. - **Know your checkpoints**: At 3.5 minutes (halfway), you should be through the core task. At 5.5 minutes, you should be starting your summary. If you're behind, skip less critical areas and prioritise summarising and closing. - **The bell rings at 7 minutes** — finish your sentence, don't abruptly stop. You may have a few seconds to wrap up naturally. - **If you finish early**, use remaining time productively: "Is there anything else you'd like to tell me?" / "Do you have any questions?" / review whether you've missed any key areas - **Don't sacrifice the close** — a candidate who covers 80% of content with a strong summary often scores higher than one who covers 100% but runs out of time without summarising

Time Management Traps - Spending too long on opening pleasantries (>1 minute is too long) - Getting stuck on one topic and failing to move on — if you've covered a domain, move to the next - Attempting to cover everything on your mental checklist rather than focusing on what matters most for that specific station - Not reading the instructions carefully enough — sometimes the task is narrower than you think

Reading the Instructions — The Most Critical Skill

This is the single most important exam technique in CASC. The reading time before each station can make or break your performance — and crucially, it differs between circuits: 4 minutes in the morning circuit and 90 seconds in the afternoon circuit.

How to Use the Reading Time

For morning stations (4 minutes): You have more time to read thoroughly, plan your approach in detail, and write brief notes. Use this time well — don't rush.

For afternoon stations (90 seconds): Read decisively. Divide your 90 seconds roughly as follows:

First read (~30 seconds): Read the entire instruction once to get the overall scenario and patient context.

Second read (~30 seconds): Identify the KEY TASK — what exactly is the station asking you to do? Underline or mentally highlight the action words: "assess," "explain," "discuss," "explore," "take a history of," "conduct a risk assessment." The key task is what you will be marked on.

Third pass (~30 seconds): Plan your approach — what framework will you use? What are the 3-5 must-cover areas for this station? What will your opening line be?

Common Instruction-Reading Errors - **Doing the wrong task**: The instructions say "explain the diagnosis to the patient" but you take a full history instead. This is a near-certain fail. - **Missing the specific focus**: "Take a history focusing on symptoms of OCD" means you should spend most of your time on OCD symptoms, not a full psychiatric history. - **Ignoring the patient context**: Instructions often contain clues — the patient's age, referral source, or presenting complaint can guide your approach. - **Not noticing it's a linked pair**: The instruction may tell you this is station 1 of a linked pair, meaning you need to gather information you'll use in the next station.

Pro Tip Before the exam, practice reading CASC instructions and identifying the key task within 30 seconds. You can find sample instructions in CASC practice books and on the Royal College website.

Managing Anxiety Between Stations

Performance anxiety is normal and affects the vast majority of CASC candidates. The key is managing it, not eliminating it.

The 4-7-8 Breathing Technique Between stations, use this evidence-based technique: 1. Breathe in through your nose for **4 seconds** 2. Hold your breath for **7 seconds** 3. Exhale slowly through your mouth for **8 seconds** 4. Repeat 2-3 times

This activates the parasympathetic nervous system and reduces physiological anxiety within 60-90 seconds — perfectly timed for the break between stations.

Between-Station Reset Protocol 1. **Exhale the last station** — mentally close the door; whatever happened is done 2. **Breathe** — use the 4-7-8 technique 3. **Read and focus** — give your full attention to the new instructions 4. **Visualise your opening** — mentally rehearse your first 30 seconds 5. **Enter with confidence** — straighten your posture, make eye contact, introduce yourself clearly

During the Circuit Break - Eat something — your brain needs glucose; a banana, energy bar, or sandwich - Drink water — dehydration impairs concentration - Go to the bathroom — discomfort is distracting - DO NOT discuss individual stations with other candidates — this increases anxiety and achieves nothing - Brief gentle stretching or walking to release physical tension - Use positive self-talk: "I've prepared well, I know my frameworks, I can do this"

What If a Station Goes Wrong?

This happens to everyone who takes the CASC. Even candidates who pass with high marks have at least one or two stations that don't go well. The key is:

1. Don't ruminate — the station is over. You cannot change it. Ruminating will actively harm your performance on the next station.
2. Reset between stations — use the reading time to completely focus on the new scenario. The new station has nothing to do with the last one.
3. Remember the maths: you need to pass a minimum of 12 out of 16 stations. One or two difficult stations do not mean failure — but consistent performance matters.
4. Each station is independently marked — a bad station doesn't affect your score on the next one. The examiner changes, the scenario changes, and you start fresh.
5. A "bad" station may not be a fail — you may have covered more than you think. Many candidates who feel they failed a station are pleasantly surprised.
6. Use it as motivation — channel any frustration into determination for the next station.

What "Going Wrong" Actually Looks Like - You misread the instructions — accept it, adapt mid-station if possible, and move on - The patient became hostile or tearful and you didn't know how to respond — manage the moment with empathy, and treat it as a learning experience - You ran out of time — this happens; if you covered the core task, you may still pass - Your mind went blank — pause, take a breath, return to your framework. Silence is acceptable; panicking is not.

Common Exam Day Mistakes

1. Misreading the instructions — The number one cause of failed stations. Read twice, identify the key task.
2. Not managing time — Spending too long on one area and missing others. Use your watch.
3. Ignoring the simulated patient's cues — The actor is trained to give you cues (emotional responses, key symptoms). Follow them.
4. Being too rigid with frameworks — Your structure should be a guide, not a script. Adapt to the scenario.
5. Forgetting risk assessment — Even in stations that don't explicitly ask for it, a quick risk screen is expected.
6. Not closing properly — Always summarise, even if briefly, and thank the patient.
7. Discussing stations between circuits — This only increases anxiety and cannot change your score.
8. Arriving late or flustered — Arrive 45+ minutes early. Being rushed before the exam starts puts you at a disadvantage.
9. Not eating or drinking during the break — Cognitive performance demonstrably drops without adequate hydration and nutrition.
10. Trying to be perfect — Good enough is good enough. You don't need to cover everything — you need to cover what matters most.

Exam Day Logistics and Practical Tips

What to Bring - Photo ID (passport or driving licence) - Exam confirmation email or letter - A watch (analogue watches are generally preferred — no smartwatches) - A pen (some stations may require brief documentation) - Snacks and water for the break - Any required medical documentation

What to Wear Dress as you would for a clinical encounter: smart professional attire. This means: - Clean, pressed clothing - Avoid excessive perfume/cologne - Avoid noisy jewellery - Comfortable shoes (you'll be moving between stations) - A name badge if you have one

At the Venue - Arrive 45 minutes early - Familiarise yourself with the layout: where are the circuits, the waiting area, the toilets, the refreshment area? - Listen carefully to the invigilator's briefing — rules may vary slightly between venues and sittings - Switch off your phone before entering the circuit

Mental Resilience Techniques

Pre-Exam Visualisation In the days before the exam, spend 5 minutes visualising yourself: - Walking into each station calmly - Reading the instructions with focus - Opening with confidence - Handling a difficult emotional moment with empathy - Closing with a clear summary

Visualisation is used by elite athletes and has evidence for improving performance under pressure.

Cognitive Reframing Replace unhelpful thoughts with realistic ones: - "I'm going to fail" → "I've prepared thoroughly and I know my frameworks" - "That station was a disaster" → "That station is done. The next one is a fresh start" - "Everyone else looks more confident" → "Most candidates feel anxious. What I see on the outside doesn't reflect what's inside" - "I need to be perfect" → "I need to pass 12 out of 16 stations. A couple of difficult stations are recoverable"

The Power of Posture Research by Amy Cuddy and others suggests that adopting an open, upright posture for 2 minutes before a high-pressure situation can reduce cortisol and increase testosterone, improving confidence. Before entering each station, stand tall, shoulders back, chin level.

The Week After: Results and Reflection

If You Pass - Celebrate — this is a significant professional achievement - Reflect on what worked well so you can share advice with colleagues - Consider offering to be a practice partner for future candidates

If You Don't Pass - Allow yourself to feel disappointed — it's natural - Remember that the average pass rate is 50-70%, meaning many excellent clinicians don't pass on their first attempt - Request your feedback from the Royal College — this will identify your specific areas for improvement - Analyse whether the issue was clinical knowledge, exam technique, time management, or anxiety — this determines your resit preparation strategy - Start preparing for the next sitting with targeted practice in your weak areas - Consider a formal CASC course if you haven't attended one

Final Preparation Checklist

Knowledge - [ ] Can I apply frameworks for all major station types? (history, MSE, risk, capacity, breaking bad news, MHA) - [ ] Do I know the key NICE guidelines relevant to CASC? (depression, psychosis, bipolar, dementia, anxiety, eating disorders) - [ ] Can I explain common diagnoses in jargon-free language?

Skills - [ ] Have I completed at least 2 full mock circuits with timing? - [ ] Have I practiced my weakest station types at least 5 times each? - [ ] Can I open and close a station smoothly in any scenario? - [ ] Can I manage a hostile, tearful, or talkative patient?

Logistics - [ ] Do I know the venue location and how to get there? - [ ] Have I done a dry run of the journey? - [ ] Are my clothes ready and professional? - [ ] Do I have my ID and confirmation email? - [ ] Do I have a watch, pen, snacks, and water?

Mindset - [ ] Have I practiced breathing techniques for between stations? - [ ] Can I reset after a difficult station? - [ ] Am I prepared to accept that not every station will go perfectly? - [ ] Do I have a realistic understanding of the pass requirements?