ABPS General Surgery common mistakes
ABPS General Surgery · Understand the traps and how to avoid them.
Commits to a management answer for a named diagnosis without reconciling it to the vital signs and examination findings in the stem. For example, selects 'IV antibiotics and observation' for a patient whose stem describes generalized peritonitis with rigidity and a systolic pressure of 88 mmHg, simply because the CT report label was 'uncomplicated diverticulitis'.
The candidate pattern-matches on the diagnostic label rather than the physiologic state. Labels feel like the answer, so the peritoneal signs and hypotension get skimmed as background detail.
What to do instead
Before looking at the options, write down three data points from the stem: hemodynamics, peritoneal/abdominal exam, and the single most abnormal laboratory value. Then eliminate any option that contradicts any of the three, even if it is the textbook treatment for the named disease.
Jumps to the definitive oncologic operation and skips the prerequisite step. Typical forms: selecting wide local excision for a newly diagnosed breast cancer before sentinel node staging or multidisciplinary discussion; choosing pancreaticoduodenectomy before completing staging imaging; or answering 'mastectomy' for a question that is actually asking for the next diagnostic step.
Definitive treatment feels like the 'real' answer, while staging and workup feel like delay. Under time pressure, candidates answer the question they expected rather than the one written.
What to do instead
For every oncology stem, recite a fixed ladder out loud: tissue diagnosis, then staging, then multidisciplinary plan, then operation, then adjuvant therapy. Then identify which rung the question is standing on by reading the final clause of the stem before reading the options.
Orders advanced imaging or a 'definitive' study on a hemodynamically abnormal trauma patient before completing the primary survey, or treats the secondary survey as optional once a CT scan is available. Another form: choosing a CT scan for a patient who is a transient responder to initial fluid.
Imaging feels diagnostic and satisfying; the primary survey feels like rote memorization. Candidates also forget that the responder category determines destination, not the imaging result.
What to do instead
Label the phase before answering. If the airway is uncertain, breathing is compromised, or the patient is hypotensive, no imaging option can be correct until ABCDE is complete. Classify the patient as responder, transient responder, or non-responder, and let that classification drive the choice between operating room, angiography, and CT.
Answers shock questions by drug-name familiarity instead of by physiology and endpoints. Examples: choosing an inotrope for a warm, vasodilated patient with a low diastolic pressure; accepting a MAP of 58 mmHg as 'close enough' because the patient looks stable; or turning to bicarbonate for a lactic acidosis before addressing the underlying hypoperfusion.
Shock physiology is taught as a list of drugs, so recall defaults to whichever vasoactive agent is most familiar, and the numeric endpoints are treated as trivia rather than decision rules.
What to do instead
For every shock item, state in writing the endpoint (MAP at least 65 mmHg, falling lactate, urine output) and the sequence (volume resuscitation, then norepinephrine, then add a second agent matched to the specific physiology). Any option that cannot move the stated endpoint is wrong.
Under-triages acute limb ischemia by accepting anticoagulation alone or catheter-directed thrombolysis as the answer for a limb with a motor deficit, or for a limb where Doppler signals are audible only with augmentation. A parallel error in thoracic questions is choosing systemic thrombolysis for a patient whose hemodynamics make the risk of bleeding prohibitive.
The word 'thrombolysis' sounds modern and minimally invasive, and candidates anchor on patency rather than on tissue viability and bleeding risk.
What to do instead
Grade every ischemic limb explicitly: viable, threatened (sensory loss or motor deficit), or irreversibly damaged. Motor deficit in a limb that is not yet irreversibly damaged means immediate operative revascularization, not catheter-directed therapy. Before selecting any lytic, scan the stem for recent surgery, intracranial disease, or active bleeding.
Ignores modifiable risk and timing. Says 'proceed with elective surgery' for a patient with a recent myocardial infarction, poorly controlled diabetes, or symptomatic anemia; or forgets to specify VTE prophylaxis, antibiotic timing and redosing, and an anticoagulation bridging plan when the stem provides those details.
The surgical problem dominates attention, and perioperative medicine is treated as a checklist to be memorized later rather than the point of the question. Timing rules are remembered as vague ranges.
What to do instead
Run a fixed six-item checklist on every perioperative item: cardiac risk and interval since the event, glycemic control, anemia, anticoagulation plan, VTE prophylaxis, and antibiotic timing and redosing. If the stem mentions one of these, the correct option will usually address it.
Recommends a regional technique without checking contraindications, for example proposing a neuraxial or paravertebral block without confirming the platelet count, the interval since the last dose of low-molecular-weight heparin, or the absence of infection at the site. A related error is misstating the maximum safe dose of a local anesthetic or failing to recognize lidocaine toxicity as the cause of new perioral numbness and confusion.
Block options read as 'better analgesia' and are chosen on benefit alone; the coagulation and dosing details in the stem are treated as distractors rather than as the actual question.
What to do instead
For any block option, verify four things: coagulation status and drug timing, infection at the site, anatomy and consent, and the weight-based dose ceiling. When a stem supplies a platelet count or a last-dose time, treat it as the reason the question exists.
Treats ascending cholangitis as a biliary colic problem. Chooses MRCP followed by elective cholecystectomy as the next step for a patient with fever, right upper quadrant pain, jaundice, and hypotension, rather than resuscitation with urgent biliary decompression.
Cholecystectomy is the familiar endpoint for gallstone disease, and the sequence of diagnostic imaging is over-learned, so the fever and hypotension that define a surgical emergency get read as background.
What to do instead
Sort every jaundiced patient into a named syndrome first: biliary colic, cholecystitis, Charcot cholangitis, or Reynolds pentad. Once hypotension or altered mental status appears, the answer must include resuscitation plus urgent drainage, with cholecystectomy deferred.
Applies adult numbers and thresholds to a child. Examples: using an adult fluid bolus volume, giving an adult drug dose, choosing adult tube or line sizes, or waiting for hypotension before treating shock in an infant.
Adult algorithms are rehearsed far more often, and pediatric formulas are recalled only approximately, so under time pressure the adult value feels safer.
What to do instead
Recalculate every pediatric number explicitly: 10 mL/kg crystalloid bolus with reassessment, 4-2-1 maintenance, age-based tube and catheter sizing, and weight-based dosing. Treat hypotension as a late sign and act on tachycardia, poor perfusion, and narrowed pulse pressure.
Answers ethics and communication items with the medically optimal plan rather than the required process. Obtains consent from an adult daughter for a patient who has decision-making capacity; conceals a surgical complication to spare the family distress; or continues treatment that the patient has refused in an advance directive.
Clinically, doing what helps the patient feels correct, and consent is treated as a signature rather than a process. Candidates forget that these items test decision-making authority and transparency, not outcomes.
What to do instead
Identify two things before answering: who holds decision-making authority, and whether the patient has capacity. Choose the option that preserves autonomy, informed consent, and full disclosure. Answers that conceal information or bypass a capable patient are almost always wrong.