Arab Board Surgery Part 1 common mistakes
Arab Board Surgery Part 1 · Understand the traps and how to avoid them.
Reproducing the inguinal canal, femoral triangle, or neck triangles as a flat list of boundaries from memory, without being able to state what lies deep and superficial to each layer or how the layers relate in three dimensions. When a stem asks about a direct versus indirect hernia, or the relation of the inferior thyroid artery to the recurrent laryngeal nerve, the answer is guessed from a mnemonic rather than derived.
Anatomy is revised from two-dimensional textbook diagrams and mnemonics because they are fast to read, and the candidate never converts them into cross-sectional or operative views. Diagrams get recognised, but relations get lost, and exam stems almost always test relations rather than lists.
What to do instead
Rebuild each region from memory in three views: a transverse cross-section, a view from inside the cavity (as at laparoscopy), and a view from the operator's side. For every named structure, state aloud its anterior, posterior, medial, and lateral relations and one surgical consequence of each (for example, which structure is at risk during ligation). Redraw weekly until the three views can be produced without prompts.
Treating embryology as a separate list to be memorised late: pharyngeal arch and pouch derivatives, midgut rotation and fixation, and the descent of the testes and ovaries are recalled only vaguely, so questions linking an arch to its nerve or a rotation step to its arterial supply are answered by elimination.
Embryology is perceived as low-yield and abstract, so it is deferred to the final weeks when there is no time to build the sequence. Isolated facts without a sequence cannot be reconstructed under exam pressure.
What to do instead
Learn embryology as five narrated sequences drawn on blank paper: pharyngeal arches with their nerve, artery, cartilage, and muscle; midgut rotation with the resulting peritoneal attachments and the consequence of each failure; hindgut and anorectal partitioning; testicular descent; and diaphragm formation with the sites of congenital hernia. Each sequence ends with two clinical correlates, which is exactly how the questions are framed.
Reporting normal resting physiology in a stem that clearly describes a perturbed patient. For example, quoting a normal cardiac output, systemic vascular resistance, glomerular filtration rate, or gastric pH in a patient with sepsis, haemorrhage, pneumoperitoneum, or positive-pressure ventilation, because the normal value is the only one remembered.
Values are learned as single numbers in isolation rather than as a response to a state, so the candidate recalls the number but not the direction of change. Stems deliberately describe a state and ask for the altered physiology, and the normal number feels safe.
What to do instead
Build a perturbation grid with states as columns (haemorrhage, sepsis, pneumoperitoneum, positive-pressure ventilation, pyloric stenosis, major burns) and variables as rows (cardiac output, systemic vascular resistance, renal blood flow, glomerular filtration rate, gastric pH, serum potassium, oxygen delivery). Fill it from first principles and rehearse explaining each cell in one sentence. Answer every physiology question by first naming the state, then the direction of change.
Naming a diagnosis from a single histological or macroscopic keyword: any granuloma is labelled tuberculosis, any hyperplastic-looking lesion is labelled malignant, and any ulcerated lesion is labelled carcinoma, without considering the discriminating features.
Pattern recognition shortcuts learned from image-based revision feel efficient, and the candidate stops at the first plausible label instead of running a differential. Under time pressure, the first match wins.
What to do instead
For each core lesion, write a two-line mechanism chain ending in the morphological name, then list three discriminators that separate it from its closest mimic (for example, caseating versus non-caseating granuloma, and the special stains or clinical context that resolve it). Practise answering by stating the mechanism first, then the diagnosis, so the label is never reached by keyword alone.
Choosing an antibiotic by familiarity, brand, or a vague sense of potency rather than by the site of infection, likely organism, local resistance pattern, and whether the indication is prophylaxis or therapy. Prophylaxis timing relative to incision, and redosing for long operations or major blood loss, are not considered.
Antibiotic names are memorised in lists without a decision framework, so the question is read as 'which drug sounds strongest' rather than 'which spectrum, given this source and this purpose'.
What to do instead
Build two separate tables. One lists surgical prophylaxis by procedure with the agent, the timing window before incision, and the redosing interval. The other lists empirical therapy by source (skin and soft tissue, intra-abdominal, biliary, urinary, catheter-related) with the cover required, including anaerobes and resistant organisms. Add a short list of stewardship principles: culture before antibiotics when feasible, de-escalation, and duration.
Dosing drugs as fixed milligram amounts without weight adjustment, renal or hepatic adjustment, or interaction review, and missing absolute contraindications. Typical examples are failing to reduce the dose in renal impairment, missing the danger of suxamethonium in burns or denervation, and continuing non-steroidal anti-inflammatory drugs in renal impairment or after anastomosis.
Pharmacology is revised as drug classes and mechanisms, whereas the exam tests application to the specific patient described. Adjustments and contraindications are the least revised part, so they are the first to be lost.
What to do instead
Prepare one perioperative drug card per agent class covering induction agents, neuromuscular blockers and reversal, opioids, local anaesthetics with maximum safe doses, anticoagulants, and common analgesics. On each card state the loading and maintenance approach, the organ adjustments, and the absolute contraindications in one line. Before answering any pharmacology item, ask three questions in order: which organ clears it, what does this patient's physiology change, and what would make it dangerous here.
Managing nutrition and the metabolic response reflexively: keeping patients 'nil by mouth with clear fluids' for longer than necessary, ordering standard dextrose-saline without calculating sodium, potassium, glucose, or protein needs, and missing the refeeding risk in a malnourished patient who is being started on feeding.
Fluids and feeding are treated as ward routine rather than as prescriptions requiring calculation, and the metabolic response to injury is learned as a list of hormones rather than as a reason to change management.
What to do instead
Practise a five-minute daily plan for a given patient: estimate maintenance and replacement needs, choose the fluid and rate, specify electrolytes, decide the route and timing of feeding, and screen for refeeding risk with the recognised criteria and the correction of thiamine, phosphate, potassium, and magnesium before and during refeeding. Attach each element to the underlying metabolic state (catabolic phase, ebb and flow) so the number has a reason.
Selecting sutures, needles, drains, and instruments by habit rather than by tissue, tension, and healing expectation. Absorbable versus non-absorbable, monofilament versus braided, needle shape, and suture size are chosen without a stated rationale, and the answer cannot justify the choice when the stem changes the tissue or the contamination level.
Surgical technique is learned from the operating theatre where a few standard choices cover most cases, and the reasoning behind them is rarely written down. Examinations ask for reasoning, not routine.
What to do instead
Build a choice grid with tissues down the side (skin, fascia, bowel, vessel, tendon, nerve, contaminated wound) and columns for suture material, size, needle, and the reason for each. For each row, state the healing timeline and the tension that will be borne. Also rehearse the principles of haemostasis, wound closure by intention, and drain indications, since questions often combine technique with wound healing.
Moving straight to a definitive diagnosis or to imaging before completing the primary survey, or failing to run through the reversible causes of shock when a trauma patient does not respond to initial resuscitation. Airway, breathing, and circulation are partially addressed, and the secondary survey is attempted too early.
Under time pressure the candidate wants to show diagnostic knowledge, and a named injury feels like a stronger answer than a process. The primary survey feels like stating the obvious, so it is abbreviated or skipped.
What to do instead
Rehearse the primary survey aloud as a timed drill, with a specific action and a re-evaluation after each step, and finish each trauma stem by naming the reversible causes of shock and what would be done for the two most likely. State explicitly when the secondary survey is permitted. Practise the rule that the answer to 'what next' before the primary survey is complete is always a primary survey action.
Misreading statistical and ethical material: treating a p-value as the probability that the hypothesis is true, ignoring confidence intervals, confusing sensitivity with predictive value, conflating bias with confounding, and answering consent or capacity questions by general principle rather than by the specified criteria.
Biostatistics is often revised as formulas rather than as interpretation, and ethics as opinion rather than as a defined framework. Both then feel subjective, and the first plausible-sounding option is selected.
What to do instead
Drill interpretation, not calculation. Write a one-line definition for each core idea (p-value, confidence interval, power, type I and type II error, sensitivity, specificity, positive and negative predictive value, bias, confounding) and then answer twenty short scenarios by writing the definition beside the option chosen. For ethics, learn the four principles, the elements of valid consent, and the criteria for capacity as checklists, and apply each element to the scenario before choosing an answer.