ABEM HPM common mistakes
ABEM HPM · Understand the traps and how to avoid them.
On any goals-of-care stem, selecting the option that stops disease-directed therapy or redirects to hospice, even when the vignette describes a patient who still wants aggressive treatment, has not been told the prognosis, or has capacity and states a preference for continued therapy.
Candidates pattern-match on the phrase 'palliative care' and apply the specialty's typical recommendation instead of reading what this specific patient values. The exam deliberately writes stems where the 'comfortable' answer is wrong because it ignores the patient's stated goal.
What to do instead
Before answering, extract three things from the stem: what the patient has actually been told, whether the patient has decisional capacity, and any explicit statement of values or desired outcome. The correct answer must be traceable to that statement, not to a general philosophy. When the stem gives no patient preference, the answer is almost always 'elicit the preference' rather than 'choose the preference.'
Performing opioid rotation by applying a memorized equianalgesic ratio and giving the calculated dose one-to-one, or forgetting that the oral-to-IV morphine ratio is roughly 3:1 rather than 1:1.
Ratios are memorized as isolated facts under time pressure and the incomplete cross-tolerance principle is recalled only when a stem explicitly flags it; stems that ask for a starting dose are assumed to be pure arithmetic problems.
What to do instead
Drill a small fixed set: oral morphine 30 mg = parenteral morphine 10 mg = oral oxycodone 20 mg = oral hydromorphone 7.5 mg = parenteral hydromorphone 1.5 mg; fentanyl 25 mcg/hr patch approximates 60-90 mg oral morphine per day, and methadone conversion is dose-dependent and nonlinear. Always reduce the calculated dose by 25-50% on rotation for incomplete cross-tolerance and reassess. If a stem asks for a starting dose after rotation, the answer should be lower than the straight conversion.
Escalating the opioid dose in a patient who has developed myoclonus, hyperalgesia, or worsening delirium on high-dose opioids, instead of recognizing opioid-induced neurotoxicity and rotating or reducing.
Worsening pain and agitation are read as under-treated pain, and the examiner's cue words (twitching, jerking, allodynia, diffuse pain worse than before) are skimmed as incidental.
What to do instead
Treat the triad of myoclonus, hyperalgesia, and delirium in a patient on escalating opioids as neurotoxicity until proven otherwise. The answer is rotation to a different opioid (often methadone or fentanyl), hydration, and consideration of adjuvant agents, not a higher dose of the same drug. Watch for the stem that says pain is now 'burning and diffuse' despite dose increases.
Answering a dyspnea vignette with supplemental oxygen for a patient who is not hypoxemic, or withholding opioids from a dyspneic dying patient for fear of hastening death.
Oxygen feels intuitively therapeutic and is over-learned from acute care; opioid fear generalizes from the pain domain.
What to do instead
Oxygen benefits only documented hypoxemia; for the non-hypoxemic dyspneic patient the evidence-based answer is low-dose opioids (e.g., oral or parenteral morphine), a fan or cool airflow, and treatment of the underlying contributor. Opioids titrated to symptom relief in the dying are standard of care and are not considered to hasten death.
Attributing new agitation, restlessness, or withdrawal in a seriously ill patient to pain, anxiety, or 'terminal restlessness' and choosing a sedative or an opioid increase, rather than screening for delirium with a validated tool and working up reversible causes.
Delirium in this population is often hypoactive and the hyperactive form is mistaken for pain; candidates also assume delirium at end of life is irreversible.
What to do instead
Any acute change in attention or cognition gets a delirium screen and a cause review: medications (especially anticholinergics, corticosteroids, opioids), urinary retention, constipation, dehydration, hypercalcemia, infection, hypoxia, and uncontrolled pain. The correct answer usually combines a non-pharmacologic bundle plus an antipsychotic for distressing symptoms, with attention to whether the patient is imminently dying, where sedation may be appropriate.
Choosing the warmest-sounding, most empathic statement on communication items, or jumping directly to a recommendation, without first eliciting what the patient understands and what they want to know.
Candidates conflate empathy with the correct answer; exam items reward a specific sequence (ask-tell-ask, NURSE, SPIKES) and often place the purely empathic line as a distractor that skips information gathering.
What to do instead
Locate the step the question is testing. If the patient has just received bad news, the next move is asking what they already understand or how much they want to know, not reassurance or a plan. Name the emotion, then pause. Reserve 'recommend' answers for stems in which the patient has explicitly asked for a recommendation.
Treating advance care planning documents as interchangeable: assuming a living will authorizes a surrogate, that a health care power of attorney lets the agent make any decision the patient could make without limitation, or that a POLST/MOLST is valid in every setting and follows the patient everywhere.
The documents overlap in practice and the distinctions are rarely made explicit during clinical training; questions exploit the specific legal authority each document carries.
What to do instead
Fix the taxonomy: a living will states treatment preferences in specified future conditions and does not appoint a decision-maker; a durable power of attorney for health care appoints an agent with authority defined by state law, often limited for certain decisions; a POLST/MOLST is a portable medical order for a seriously ill or frail patient, signed by a clinician, and is not an advance directive. Check the stem for setting and signature before picking.
Endorsing the idea that withdrawing a ventilator, vasopressors, or dialysis is legally different from never starting them, or that it constitutes euthanasia or assisted dying.
The visible causal sequence of withdrawal feels morally weightier than omission, and candidates let intuition override settled ethics and law.
What to do instead
Hold the principle: withholding and withdrawing life-sustaining treatment are ethically and legally equivalent, justified by the patient's wishes or best interests, and are distinct from euthanasia and physician-assisted dying, which require a specific legal framework and patient self-administration. On exam, an item describing withdrawal for a patient who does not want the intervention should be answered as permissible, with attention to symptom management during the process.
Failing to recognize the last days of life: continuing routine disease monitoring and non-beneficial medications (statins, bisphosphonates, glucose checks, aspirin for primary prevention) in an actively dying patient, or treating terminal respiratory secretions with suctioning and antibiotics rather than repositioning and an anticholinergic.
The default is to continue the chronic-care plan, and the exam's description of the dying phase (mottling, Cheyne-Stokes respirations, decreased urine output, days of bedbound status) is read as background rather than as the diagnostic finding.
What to do instead
Anchor the diagnosis of dying on the combined clinical picture, then choose the answer that deprescribes and focuses on comfort: stop non-beneficial medications and labs, discontinue routine monitoring, use anticholinergics (glycopyrrolate or scopolamine) and repositioning for secretions, and address the family's distress about the dying process. Deep suctioning and antibiotics for death rattle are wrong answers.
Confusing Medicare hospice benefit mechanics: misidentifying the four levels of care, missing that the initial certification period is 90 days and the second is 90 days followed by unlimited 60-day periods, or choosing a structure measure when the item asks for an outcome or process measure.
Regulatory detail is memorized once and rarely rehearsed, and quality-improvement terminology is treated as interchangeable.
What to do instead
Memorize the levels (routine home care, continuous home care, general inpatient care, inpatient respite care) with their intensity and location thresholds, and the certification/recertification timeline including the face-to-face requirement before the third benefit period. For QI items, separate structure (staffing, policies), process (was a pain screen done), and outcome (pain score improved) before selecting.