This is the half of ethics the question banks barely touch: consent, capacity, the law that governs the emergency room, and what actually counts as malpractice. The board loves it because the right answer is almost always simpler than the trap. Two facts win most of these points: does the patient have capacity, and is the harm serious, imminent, and unavoidable. Start with the case that trips up the most people.
Before you scroll · tap the best next step
A 34-year-old man is brought to the emergency department after a motorcycle crash with a ruptured spleen and a hemoglobin of 5.9 g/dL. He is fully alert, repeats back that he will likely die without blood, and refuses transfusion because he is a Jehovah's Witness. He carries a signed, witnessed card declining blood products. His brother arrives and says, "He would want to live, give him the blood." What is the best next step?
What single fact decides this?
Whether he has capacity for THIS decision, right now. He is alert, understands he may die, appreciates it applies to him, and gives a consistent reason. He has it.
Does the low hemoglobin change anything?
No. The emergency exception only applies when the patient cannot consent. He can, and he said no. A capable adult may refuse even life-saving care for any reason, including religious belief.
Why are the committee and the court order traps?
There is no disagreement to adjudicate and nothing for a judge to decide. The patient is capable and clear. Transfusing over a capable refusal is battery. The brother cannot override a capable patient. The simplest answer is the right one: honor the refusal.
Scroll ↓ consent and capacity come next
Section 1 · What Makes a Yes Count
Informed Consent + Capacity
A signature is not consent. The conversation is. And the conversation only counts if the patient can actually make the decision. Get these two ideas locked and half of this subject falls into place.
The four elements of informed consent
Every valid consent needs all four. Miss one and the yes does not count.
Element
What it means
Capacity
The patient can make this decision (see below).
Disclosure
Diagnosis, the proposed intervention, risks, benefits, alternatives, and the option of no treatment.
Understanding
They can repeat it back in their own words, not just nod.
Voluntariness
The choice is free. No coercion from family, staff, or circumstance.
Signing a consent form · the signature records the conversation, it is not the consent
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A signed form is just paper. If the disclosure conversation never happened, the consent is invalid even with a signature. Think of the form like a concert ticket stub: it proves you showed up, not that you understood the show.
When you do NOT need consent first
Three clean exceptions, and only three you need for the boards:
Exception
Why
True emergency
Implied consent: a reasonable person would want life saved, and the patient cannot consent.
Patient waiver
The patient says, "I trust you, I do not want the details." That is their right.
Previously consented
They already agreed to this exact procedure.
Capacity vs Competence
This is the single most tested distinction on the page. Same idea, two different deciders. Tap the cells to test yourself first.
Capacity
Competence
Who decides
Physician, at the bedside
A court, only
Scope
This one decision, this moment
Global, legal status
Changes?
Can fluctuate hour to hour
Standing until a court changes it
Tap a blurred cell to reveal it.
The four pillars of capacity: understand the information, appreciate how it applies to them, reason through the options, and communicate a consistent choice. A patient can refuse a life-saving treatment if they have capacity, and capacity does not require agreeing with you.
⚠ The classic trap
A patient making a choice you think is foolish does NOT mean they lack capacity. "He is refusing, so he must be incompetent" is backwards. Disagreement is not incapacity. A stable psychiatric diagnosis, by itself, does not erase capacity for a specific decision either.
The Consult · walk the call
A Named Patient. One Right Move.
Three patients are waiting. Each one is a jurisprudence call the board loves. Read the room, make the move, and watch the rule lock in. Press to begin.
Consult I · The Bedside
EVELYN
AGE 78 · ICU
"Found down at home. Now intubated and unresponsive, with no way to tell anyone her own wishes. No advance directive. The intensivist needs a decision in the next hour, and she cannot give it."
Consult I · Your move
Who makes Evelyn's decision now?
The rule, locked
Consult complete
3 / 3
You walked all three. Capacity first, then the directive, then the right surrogate standard. That is the whole engine.
Section 2 · The Youngest Patients
Minors + Confidential Care
Parental consent is the default. The whole topic is just the exceptions to that default, and there are only two kinds: a minor who counts as an adult, and a minor who can consent for specific private care.
The emancipated minor
An emancipated minor consents like an adult for everything. The triggers:
Emancipated if the minor is...
· Married
· In the military
· Financially independent and living alone
· A parent themselves
· Emancipated by court order
Many states also recognize the mature minorA minor a clinician judges able to understand and reason through a specific decision, allowed to consent to it even without full emancipation. It is decision-specific, like capacity.: an adolescent judged able to understand a specific decision can consent to it.
What any minor can consent to alone
Even without emancipation, most states let a minor consent, confidentially, for the private things. The memory device is built right in: it is the stuff a teenager would not want a parent to know.
Confidential, no parent needed
The idea
STI care
Public health wins. Barriers spread disease.
Contraception
Access protects them.
Prenatal care
Two patients now.
Substance-use treatment
Removing shame removes a barrier.
Emergencies
Always. Never delay care for consent.
⚠ The parent who refuses life-saving care
A parent generally cannot refuse clearly life-saving treatment for a child. If parents refuse a transfusion for a bleeding child, you do not just shrug. You seek emergency court authorization, and in a true emergency you treat to save the child's life. Parental authority stops where the child's life begins.
Note the contrast that catches people: abortion is not on the automatic confidential list. Most states require parental involvement, with judicial bypassA court process that lets a minor obtain care without parental involvement when she cannot safely involve a parent. It is a fallback, not a universal requirement for every minor. as the fallback. And no partner or father consent is ever required for a pregnancy decision.
Decision Tree · guess before the branch opens
Who Signs? Walk the Logic.
A new patient arrives at every step. Predict the rule before it unlocks. Each call is one fork: capacity present or not, minor exception or not.
🔑 The private-care list
A minor can say yes alone to the stuff they would hide from a parent: STIs, contraception, pregnancy care, and substance use, plus emergencies.
tap to reveal
🔑 Emancipated triggers
Married, military, money (independent), mom or dad (a parent), or a magistrate (court order).
tap to reveal
Section 3 · When the Patient Cannot Speak
Surrogates, Directives & End of Life
When the patient loses capacity, you do not guess. There is an order, and there is a standard for how the decider should think. Follow the order, apply the standard, and the end-of-life traps disappear.
The order, top to bottom
Priority
Source
1
Advance directive / living will, if present
2
Healthcare proxyA person the patient named in advance to make decisions for them, also called a durable power of attorney for healthcare. A named agent outranks the default family hierarchy. / durable power of attorney for healthcare
A living will states the patient's own wishes. A proxy names a person. A named proxy outranks the default family order.
A written refusal or advance directive · the patient's own wishes, carried forward when they cannot speak
How the surrogate should think
Two standards, in order:
Standard
Question it asks
Substituted judgment
"What would this patient have wanted?" Use first.
Best interest
"What is best for them?" Fallback, only when their wishes are unknown.
The surrogate steps into the patient's shoes, not their own. The question is never "what does the family want."
End of life: the rules that trip people
Rule
What to know
Withdrawing = withholding
Stopping a treatment and never starting it are ethically and legally the same.
Double effectGiving a treatment intended to relieve suffering (such as opioids for pain) that may foreseeably hasten death is permitted, as long as the intent is comfort, not to cause death.
Pain relief that may hasten death is allowed when the intent is comfort.
Medical futility
You may decline non-beneficial interventions.
Valid DNR
Respect it. It is the patient's standing instruction.
Physician-assisted death
Legality varies by jurisdiction.
⚠ "Withdrawing care feels like killing"
It is not, and the board knows students flinch here. Turning off a ventilator the patient never wanted is honoring their refusal, the exact same act as never placing it. Letting a disease run its natural course is not euthanasia. Withdraw and withhold are the same call.
For the deeper end-of-life legal cases (hospice consent disputes, the law around comfort care and futility at the bedside), see the palliative and end-of-life legal page.
🔑 Surrogate standard
Substituted judgment first (their shoes), best interest only when their wishes are unknown.
tap to reveal
🔑 End-of-life one-liner
Withdrawing equals withholding. Comfort that may hasten death is allowed when comfort is the intent.
tap to reveal
Section 4 · The Law of the Emergency Room
EMTALA, Malpractice & Reporting
Three rules govern almost every emergency-room vignette on the boards. What you owe a patient who walks in the door, what counts as a lawsuit, and when you must break confidentiality. Each one has a clean, simple answer the trap tries to bury.
EMTALA: the door is always open
Any patient who comes to the emergency department gets the same two things, no matter what. Tap each step.
1
Screen
2
Stabilize
3
Transfer
Medical screening exam. Every patient who presents gets a screening exam to find an emergency condition. This happens before anyone asks about insurance or ability to pay. You never check a wallet before checking a pulse.
Stabilize. If an emergency condition exists, you treat to stabilize it regardless of ability to pay. Active labor counts as an emergency condition, so a woman in labor is stabilized and delivered, not turned away.
Transfer only when safe. You may transfer only after the patient is stabilized, or at the patient's informed request, and only to a facility that has accepted them. Moving an unstable patient to dodge cost is the classic EMTALA violation: "dumping."
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The EMTALA shortcut: screen and stabilize, money never comes first. If a vignette has anyone delaying care to ask about payment or insurance, that is the wrong answer, every time.
Scales of justice · malpractice is weighed against the four Ds, and competence is a court call
Malpractice: the four Ds verdict
A malpractice claim needs all four Ds. Miss one and the suit fails. Read the case, then tap the Ds you think are proven. See if it holds up.
D
Duty
D
Dereliction
D
Damages
D
Direct cause
Duty: physician-patient relationship. Dereliction: below standard care. Damages: real harm. Direct cause: breach caused harm.
The courtroom · where a malpractice suit or a contested court order is decided, rarely the bedside answer
When confidentiality breaks
Confidentiality is the default, but three situations override it. These are the reportable exceptions.
Break it when...
Why
Serious, imminent threat to a named person
The duty to protect a third party. Warn the victim and notify authorities.
Reportable communicable disease
Public health. Certain infections are reported to the health department.
Suspected abuse of a child, elder, or dependent adult
Protecting the vulnerable. A reasonable suspicion is enough; you do not need proof.
For the full duty-to-warn analysis (the identifiable-victim rule, what counts as a serious and imminent threat, and how confidentiality is balanced against safety), see the confidentiality and duty-to-warn page.
🔑 The four Ds
Duty, Dereliction, Damages, Direct cause. All four, or no case. A bad outcome with no breach is not malpractice.
tap to reveal
🔑 EMTALA in five words
Screen, stabilize, money comes last. Transfer only once stable or by informed request.
tap to reveal
Section 5 · The Real Thing
Board Walkthrough
Every one of these is a full board-style vignette. One at a time, shuffled, never the same two in a row. Answer, then the clues light up and the reasoning chain unlocks. The pattern is always the same: the right move is usually simpler than the trap.
Exam tools, on the question before you answer · right-click or long-press a choice to cross it out · double-click or double-tap to highlight it
