EDAIC Part 2 Intensive Care Viva: A Reasoning-First Approach

The EDAIC Part 2 intensive care viva tests your ability to think aloud through complex, evolving critical-care scenarios. Unlike the written MTF questions in Part 1 Paper B, the structured oral examination (SOE) demands that you articulate your reasoning, justify priorities and adapt as the examiner introduces new information or complications. Success hinges not on reciting protocols but on demonstrating a systematic, physiology-anchored approach to the acutely unwell patient.

This guide offers a reasoning-first framework for the EDAIC ICU SOE, emphasising problem representation, organ-support priorities and the iterative cycle of assessment, intervention and reassessment that defines intensive-care practice.

Understanding the EDAIC Part 2 Intensive Care Viva Format

The Part 2 oral examination is structured into multiple stations, each with two examiners. At least one station will focus on intensive care; others typically cover general anaesthesia, regional anaesthesia and special/sub-specialty topics. (For the exact number of stations, their duration and the detailed structure, consult the official ESAIC/EDAIC resources.) The EDAIC critical care viva typically begins with a clinical scenario—a patient admitted to ICU post-operatively, following trauma or with acute medical deterioration—and evolves as you propose investigations, interpret results and outline management.

Examiners assess your clinical reasoning, your ability to prioritise, your grasp of physiology and your communication. They are not looking for a single "correct" answer but for a safe, logical thought process. You will be interrupted, redirected and challenged; this is by design. The viva is a conversation, not a monologue.

Building a Reasoning Framework for ICU Scenarios

A structured approach to any EDAIC ICU SOE question rests on three pillars: problem representation, physiological understanding and iterative reassessment.

Problem Representation

Begin by summarising the case in one or two sentences that capture the core pathophysiology and the key threats. For example: "This is a 62-year-old man with severe community-acquired pneumonia, type 1 respiratory failure and evolving septic shock." This framing demonstrates that you have synthesised the information and identified the primary problems. It also signals to the examiner which organ systems and interventions you will prioritise.

Problem representation is not a list of observations; it is a synthesis. Avoid reciting every detail from the stem. Instead, distil the case into its essential elements: the underlying disease process, the degree of physiological derangement and the immediate threats to life.

Anchoring Management in Physiology

Every intervention you propose should flow from a physiological rationale. If you suggest increasing the FiO₂, explain that you are addressing hypoxaemia by improving alveolar oxygen tension. If you advocate fluid resuscitation, articulate your assessment of preload responsiveness and your concern for inadequate oxygen delivery. If you recommend vasopressor support, state that you are targeting a mean arterial pressure sufficient to maintain end-organ perfusion in the context of distributive shock.

This physiological anchoring is what distinguishes a trainee who understands intensive care from one who has memorised a checklist. Examiners will probe your reasoning: "Why noradrenaline rather than vasopressin?" "What is your target haemoglobin in this patient?" Your answers must reference oxygen delivery, vascular tone, myocardial oxygen consumption or another relevant physiological principle.

Iterative Reassessment

Intensive care is dynamic. The EDAIC Part 2 intensive care viva reflects this by introducing new data—blood gases, imaging, haemodynamic trends—as the scenario unfolds. After each intervention you propose, pause and state how you will reassess: "I would repeat the arterial blood gas in one hour to evaluate the response to increased PEEP," or "I would monitor urine output, lactate and central venous oxygen saturation to gauge the adequacy of resuscitation."

This habit of stating your reassessment plan demonstrates that you understand the uncertainty inherent in critical care. You are not claiming that your initial plan is definitive; you are showing that you will adapt based on the patient's trajectory.

Organ-Support Priorities in the ICU Viva

Most EDAIC ICU SOE scenarios involve multi-organ dysfunction. Your task is to triage: which derangements pose the most immediate threat, and which can be addressed sequentially? The following framework is useful.

Airway and Ventilation

If the patient is not intubated and you judge that they require mechanical ventilation, state your indication clearly: refractory hypoxaemia, hypercapnic respiratory failure with acidosis, inability to protect the airway or anticipation of deterioration (for example, before urgent surgery or transfer). Outline your preparation—pre-oxygenation, haemodynamic optimisation, choice of induction agent and muscle relaxant—and mention the risks (hypotension, aspiration).

Once ventilated, discuss your ventilator strategy in physiological terms: tidal volume and PEEP to balance oxygenation and the risk of ventilator-induced lung injury; permissive hypercapnia if lung-protective ventilation is a priority; prone positioning or recruitment manoeuvres if severe ARDS is present. Always state your target: adequate oxygenation (typically PaO₂ >8 kPa or SpO₂ >88–92% in most contexts) and acceptable pH (>7.20–7.25 in permissive hypercapnia).

Cardiovascular Support

Shock is a common theme. Classify the type—distributive (septic), cardiogenic, hypovolaemic or obstructive—and tailor your approach accordingly. For distributive shock, emphasise early fluid resuscitation guided by markers of preload responsiveness (passive leg raise, stroke-volume variation if appropriate), followed by vasopressor support (noradrenaline first-line) to restore vascular tone. For cardiogenic shock, discuss the balance between optimising preload, reducing afterload and supporting contractility, and mention the role of inotropes or mechanical circulatory support if relevant.

State your haemodynamic targets (mean arterial pressure ≥65 mmHg is a common starting point, but you may individualise based on chronic hypertension or cerebral perfusion concerns) and the parameters you will monitor: lactate, central or mixed venous oxygen saturation, urine output and capillary refill.

Renal Support

Acute kidney injury is frequently part of the picture. Discuss your approach to optimising renal perfusion (adequate mean arterial pressure, avoiding nephrotoxins, ensuring euvolaemia) and your threshold for initiating renal replacement therapy: refractory hyperkalaemia, severe metabolic acidosis, fluid overload unresponsive to diuretics or uraemic complications. Mention the modality (continuous veno-venous haemofiltration is standard in the haemodynamically unstable patient) and the need for anticoagulation.

Sepsis and Source Control

If sepsis is the underlying diagnosis, state the importance of early antimicrobial therapy (after blood cultures) and source control. Examiners may ask you to suggest investigations to identify the source (imaging, microbiology) or to discuss the principles of antimicrobial stewardship. Acknowledge that empirical therapy is broad-spectrum initially, then de-escalated based on culture results and clinical response.

Communication and Uncertainty in the Viva

The EDAIC critical care viva is as much a test of communication as of knowledge. Speak clearly, structure your answers and avoid jargon unless you can define it. If the examiner asks a question you cannot answer fully, it is acceptable to say, "I am not certain of the exact threshold, but I would discuss this with a senior colleague and refer to the latest guidelines." This honesty is safer than inventing a figure.

When the examiner introduces a complication—"The patient's PaO₂ has dropped despite increased FiO₂"—pause, acknowledge the new information and work through your differential aloud: "That suggests worsening V/Q mismatch, possible pneumothorax, mucus plugging or progression of ARDS. I would examine the patient, review the ventilator settings and request an urgent chest radiograph." This structured response shows that you are thinking, not panicking.

Exam tip: If you are unsure which intervention to prioritise, state the options and explain your reasoning for choosing one. For example: "I could increase PEEP or consider prone positioning. Given the severity of hypoxaemia and the high FiO₂ requirement, I would opt for prone positioning and reassess after twelve hours." The examiner sees your thought process, which is the point of the viva.

Linking Part 2 ICU Preparation to Part 1 Foundations

The intensive-care content tested in the EDAIC Part 2 viva builds directly on the Paper B syllabus from Part 1. If you have not recently revised the written intensive-care topics—acute respiratory distress syndrome, sepsis and septic shock, acute kidney injury, brain injury, trauma, poisoning and the principles of organ support—return to those foundations now. The oral exam assumes you know the definitions, classifications and basic management; it tests whether you can apply that knowledge under pressure and articulate your reasoning.

For a detailed review of the intensive-care syllabus, see the EDAIC Part 1 Paper B Intensive Care guide, which covers the core topics and the physiology underpinning them.

Practice and Feedback

You cannot prepare for the EDAIC ICU SOE by reading alone. You must practise speaking your reasoning aloud. Find a colleague or mentor to conduct mock vivas. Record yourself answering a scenario and listen back: Are you clear? Are you structured? Do you justify your choices? Join a study group or an online forum where trainees share scenarios and critique one another's answers.

Seek feedback from consultants who have examined or who have recently passed the EDAIC Part 2. They can tell you whether your answers are pitched at the right level and whether you are over-complicating or over-simplifying.

Common Pitfalls to Avoid

Reciting protocols without reasoning. Examiners will ask "Why?" If you cannot explain the physiology, the protocol is meaningless.
Ignoring the question. If the examiner asks about ventilator management, do not launch into a discussion of antimicrobial therapy. Answer what is asked, then offer to discuss related issues if time permits.
Inventing numbers. Do not state a specific drug dose, infusion rate or laboratory threshold unless you are certain. Describe your approach qualitatively and acknowledge that you would confirm the detail in a reference or guideline.
Failing to reassess. Every intervention must be followed by a plan to evaluate its effect. State the timeframe and the parameters you will monitor.

Frequently Asked Questions

What is the format of the EDAIC Part 2 intensive care viva?

The EDAIC Part 2 oral examination includes at least one ICU-focused station with two examiners. You will be presented with a clinical scenario and asked to discuss assessment, investigation and management. The scenario evolves as you answer, with the examiners introducing new data or complications. For the exact number of stations and their duration, consult the official ESAIC/EDAIC resources.

How is the EDAIC ICU SOE different from the written Paper B intensive care questions?

Paper B tests your knowledge through MTF questions; the Part 2 viva tests your ability to reason aloud, prioritise and communicate. You must justify your choices, adapt to new information and demonstrate a structured approach to the critically unwell patient.

Can I pass the EDAIC Part 2 intensive care viva without ICU experience?

The examination assumes you have clinical exposure to intensive care at the level expected of a trainee anaesthetist. If your ICU experience is limited, seek additional rotations or observerships and practise mock vivas with ICU consultants to build confidence in discussing organ support and critical-care physiology.

Should I memorise specific ICU protocols for the viva?

No. Examiners want to see reasoning, not rote recall. Understand the physiological principles behind common interventions—mechanical ventilation, vasopressor support, renal replacement therapy—and be able to justify your approach. If a specific protocol is relevant, describe it in general terms and state that you would refer to local or international guidelines.

Final Thoughts

The EDAIC Part 2 intensive care viva rewards candidates who think like intensivists: systematically, physiologically and iteratively. Build your answers around problem representation, anchor every intervention in a clear rationale and always state how you will reassess. Practice speaking your reasoning aloud, seek feedback and refine your communication. The viva is not a test of perfect knowledge; it is a test of safe, structured clinical thinking.

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