ABPS Anesthesiology (BCA) common mistakes
ABPS Anesthesiology (BCA) · Understand the traps and how to avoid them.
Selects answers from a drug's class reputation rather than its receptor-level kinetics - for example, treating context-sensitive half-time as interchangeable with elimination half-time, or assuming all neuromuscular blockers recover at the same rate.
Candidates study from high-yield summaries that emphasize drug families and buzzwords; the exam instead tests second-order comparisons within and across classes.
What to do instead
For each drug, build a four-column grid (receptor, onset, offset mechanism, organ dependence) and practice side-by-side comparisons of pairs such as cisatracurium versus rocuronium and remifentanil versus fentanyl.
Interprets monitors by their label rather than by the physical variable they measure - for example, treating pulse oximetry as a ventilation monitor or accepting an arterial trace transduced at the wrong level as accurate.
Equipment questions blend physics with clinical habit, and candidates rely on how a device is used at the bedside rather than on what it actually measures.
What to do instead
For every monitor, write the measured variable, at least three failure modes, and one clinical scenario in which the reading misleads; include leveling, damping, and artifact for pressure systems.
Clears a patient for elective surgery on the basis of a cardiology note or a 'normal' echocardiogram without quantifying functional capacity and disease-specific risk - for example, recent drug-eluting stent, severe aortic stenosis, or decompensated heart failure.
Pattern matching to outpatient documentation is faster than structured risk assessment, and candidates mistake a consultant's note for a perioperative risk estimate.
What to do instead
Use a preoperative template that forces functional capacity, disease-specific risk, medication management, and escalation triggers; practice classifying lesions as severe versus not severe.
Plans airway management by device preference rather than by predicted difficulty - for example, defaulting to direct laryngoscopy after identifying difficult-airway predictors, or omitting rescue and emergency pathways.
Training habits and time pressure favor the familiar device, and candidates answer the first step rather than the whole algorithm.
What to do instead
For each difficult-airway vignette, rehearse a written Plan A to D that starts with oxygenation and includes supraglottic rescue and front-of-neck access; state the trigger for moving to the next plan.
Applies MAC values as fixed potency constants across all patients - for example, ignoring age, temperature, pregnancy, or the additive effect of opioids and nitrous oxide.
MAC is taught as a single number, so candidates fail to treat it as a variable influenced by physiology and coadministered drugs.
What to do instead
Memorize MAC modifiers as a checklist and practice computing additive MAC and age-adjusted MAC in sample vignettes.
Calculates local anesthetic dose from a single remembered maximum without weight, epinephrine, or site-specific absorption - and fails to recognize early LAST symptoms such as tinnitus, agitation, or perioral numbness.
Rote dose memorization replaces per-case calculation, and early LAST signs are subtle and easily attributed to anxiety.
What to do instead
Recalculate mg/kg and absolute caps for every block, and rehearse the LAST sequence: stop injection, secure airway, give benzodiazepine for seizures, and start lipid emulsion.
Treats PONV as a single-drug problem - gives ondansetron alone, skips risk scoring, and ignores Apfel risk factors and nonpharmacologic measures.
Reflexive order sets and institutional defaults replace risk-stratified prophylaxis, and candidates answer the most familiar antiemetic.
What to do instead
Apply a risk-stratified multimodal bundle: three to four drug classes plus propofol-based anesthesia and adequate hydration for high-risk patients; state the Apfel score in the plan.
Mismanages ventilation in critical care scenarios by applying one lung-protective strategy everywhere - for example, permitting hypercapnia in raised intracranial pressure or using high PEEP in right heart failure.
Protocol overgeneralization from ARDS teaching leads candidates to ignore condition-specific physiology.
What to do instead
Build a one-page table of ventilator goals by condition (ARDS, status asthmaticus, raised intracranial pressure, right heart failure) and practice choosing settings that match the physiology.
Doses by total body weight in obesity and by adult mg/kg in neonates or frail elderly patients, ignoring pharmacokinetic and pharmacodynamic differences.
Convenience and familiarity with adult dosing lead to arithmetic that is quick but physiologically wrong.
What to do instead
Memorize adjusted body weight calculation and neonatal and geriatric dosing principles for common drugs, then practice calculating doses in obese, neonatal, and elderly vignettes.
Chooses individual-blame answers in safety and ethics items - for example, attributing a medication error to a careless clinician rather than to look-alike labels, and treating informed consent as a signature.
Clinical training emphasizes individual performance, so candidates underweight latent system defects and the elements of valid consent.
What to do instead
For each error scenario, identify the latent system defect and the strongest barrier; review the elements of informed consent, capacity, and disclosure of complications.