EDAIC Part I common mistakes
EDAIC Part I · Understand the traps and how to avoid them.
Answering the MCQ paper from memory of textbook facts instead of reasoning through the applied vignette, so you pick the option that is 'true in general' rather than the one that is correct for the patient described.
The Part I paper is built around clinical stems with a single best answer; candidates who learned physiology and pharmacology as isolated facts default to the most familiar statement rather than testing each option against the specific values, comorbidities and timings given in the stem.
What to do instead
For every stem, underline the age, weight, comorbidity, drug dose and time course before reading the options, then eliminate options that would be wrong for that specific patient even if they are physiologically true in general. Practise on stems with distractors that are 'true but irrelevant' and write one line per rejected option saying why it fails for this patient.
Treating the exam as a single combined paper and revising only anaesthesia, so intensive-care topics (sepsis physiology, ARDS ventilation, acid-base, ICU sedation and weaning) are answered from general surgical knowledge.
Many candidates come from a predominantly theatre-based training programme and underestimate how much of the paper tests critical care physiology, blood-gas interpretation and organ support; they run out of preparation time before reaching ICU material.
What to do instead
Build a checklist that explicitly separates anaesthetic and intensive-care topics and allocate at least a third of study time to ICU physiology, blood gases, ventilation modes, sepsis and renal replacement. Use ICU case vignettes (ventilated patient with mixed acid-base disorder, septic patient with vasopressor choice) as practice stems rather than reading ICU textbooks passively.
Calculating doses, infusion rates, dilution strengths or gas volumes loosely in your head under time pressure, and choosing the option closest to your rough estimate.
The paper contains numerical stems (drug infusions in mcg/kg/min, local anaesthetic maximum doses, oxygen delivery, shunt equations, vapouriser output); candidates who have not rehearsed these calculations make order-of-magnitude errors and then rationalise the nearest option.
What to do instead
Rehearse a fixed written method for each calculation family (convert units first, write the formula, substitute, check the magnitude), and practise a set of ten calculations per topic weekly with a timer. In the exam, write the arithmetic on the question paper rather than estimating mentally, and sanity-check every answer against a physiological range.
Misreading the question's qualifier - 'single best answer', 'most likely', 'least appropriate', 'initial management' - and answering the question you expected rather than the one written.
Under time pressure the eye locks onto the clinical scenario and the first plausible option; negative qualifiers and 'next step' framings are easily missed, especially in long stems where the question is the final clause.
What to do instead
Train yourself to read the final sentence of the stem first, then the stem, then the options. Highlight or circle the qualifier word in every question. In practice, deliberately drill 'least appropriate' and 'next step' items so the habit of locating the qualifier becomes automatic.
Choosing the most sophisticated or newest-sounding option (a named receptor mechanism, a novel drug, an advanced monitor) when the correct answer is the simpler, safer first-line action.
Candidates equate exam difficulty with technical complexity and assume the examiner wants the advanced answer; in fact many items test whether you would do the safe basic thing (secure the airway, give oxygen, check potassium, stop the drug) before anything clever.
What to do instead
When two options are both plausible, ask which one a cautious consultant would do first at the bedside. Favour resuscitation and safety steps over mechanistic elegance unless the stem specifically asks for mechanism. Review each wrong 'clever' answer afterwards and note why the simple option was correct.
Failing to link basic science to clinical practice - answering pharmacology items by drug class name without knowing receptor, onset, metabolism or interaction, and physiology items without applying them to a clinical scenario.
The Part I syllabus explicitly integrates basic sciences with clinical anaesthesia; candidates who revise pharmacology as a list of drug names and physiology as equations cannot answer items that ask why a drug behaves differently in renal failure or why a shunt worsens with a particular manoeuvre.
What to do instead
For each core drug, write a one-page profile covering mechanism, pharmacokinetics, key interactions and the clinical situation that changes its behaviour; for each physiology system, practise explaining a clinical sign from first principles. Test yourself by explaining mechanisms aloud to a colleague rather than recognising drug names.
Leaving equipment, physics and monitoring items unprepared because they feel unrelated to clinical work, then guessing at vaporiser output, pipeline gas failure, capnography waveforms or electrical safety.
These topics are a recognised part of the basic-science component but are rarely encountered in day-to-day theatre teaching, so candidates deprioritise them and cannot interpret a capnograph trace or a breathing-system diagram described in words.
What to do instead
Work through equipment and physics systematically: breathing systems, vaporisers, gas supply and pipeline failures, capnography and pulse oximetry principles, electrical safety and diathermy. Draw each waveform and circuit from memory, then check your drawing against a standard text and correct it; practise items that describe a trace in words.
Running out of time or losing marks through poor exam technique - spending too long on one difficult stem, leaving blanks, or changing correct answers on a last-minute review.
The paper is long and contains deliberately hard discriminating items; candidates who cannot let go of a single question lose time for easier marks, and anxiety-driven answer-changing erodes scores.
What to do instead
Simulate the real paper under timed conditions repeatedly, adopting a rule to flag and move on after a set time per question, and never leave blanks if there is no negative marking. Review flagged items only at the end and change an answer only when you can articulate a specific reason the first choice was wrong.
Revising from a single textbook cover to cover without doing question-based retrieval, so knowledge is recognised but not retrievable when the stem is phrased differently.
Reading feels productive and covers the syllabus, but recognition memory does not transfer to applied single-best-answer items; candidates then report knowing the fact but not being able to select the answer under exam phrasing.
What to do instead
Invert the ratio: spend most revision time on applied questions and case vignettes, using reading only to fill gaps revealed by wrong answers. Keep an error log recording the topic, the reason you got it wrong and the corrected concept, and revisit the log weekly so weak areas are retested rather than reread.
Ignoring the professional, safety and non-technical aspects embedded in stems (consent, duty of candour, WHO checklist, human factors, team communication, audit and governance) and answering purely on clinical grounds.
Candidates assume a science exam only tests science, so items about a never event, a drug error, a difficult conversation or a checklist omission are answered with the clinically effective option rather than the professionally correct one.
What to do instead
Include a dedicated block on patient safety, human factors, consent and capacity, incident reporting and quality improvement in your revision plan, and practise stems where the 'clinically effective' option conflicts with the 'professionally correct' one. Learn the standard frameworks (open disclosure, grading of recommendations, checklist principles) so you can recognise the expected answer.