Medical Law, Regulation, and Ethics
What this domain tests
Law, regulation, and ethics questions ask you to apply rules to a concrete bedside decision: who may consent, when confidentiality yields, what makes a negligence claim succeed, and how research and commercial relationships are governed. The answer usually turns on one decisive fact in the stem, so read for capacity, age, urgency, and who is asking.
Core rules
- Negligence needs four elements: a duty of care, breach measured against a reasonably competent clinician in the same field, causation (factual but-for and legal proximity), and compensable damage. Breach without harm is not negligence.
- Informed consent has three substantive elements: capacity, adequate disclosure (material risks, benefits, alternatives including declining), and voluntariness, plus documentation. The emergency exception applies only when the patient cannot consent and delay risks serious harm.
- Capacity is decision-specific, presumed, and assessed clinically through understanding, appreciation, reasoning, and expression of choice. Competence is a legal status decided by courts, not by a score.
- Confidentiality is not absolute. Disclosure is lawful with consent, when statute requires it (notifiable diseases, child or elder abuse, certain wounds), to avert serious imminent harm to an identifiable person, or under court order, and then only the minimum necessary.
- Research requires independent ethics review, valid consent, and genuine uncertainty (equipoise); vulnerable groups need added safeguards. Conflicts of interest such as gifts, referral arrangements, and industry funding must be disclosed and sometimes refused.
Worked example
An 82-year-old with a gangrenous foot and early sepsis refuses amputation; his daughter demands that everything be done. Reasoning: a capacitated patient's refusal is binding even when unwise or potentially fatal, and even when a relative disagrees. Assess and document capacity now: does he understand the diagnosis, the risk of death, and the palliative alternative? If capacity is intact, respect the refusal, treat infection and pain, involve palliative care, and record the discussion, the daughter's objection, and the capacity assessment. If capacity is absent, act under the emergency exception or the local substitute-decision framework.
Traps that cost marks
- Assuming a relative can consent for a competent adult.
- Treating refusal of treatment as proof of incapacity or depression.
- Omitting the option of no treatment from the consent discussion.
- Disclosing more than the minimum necessary when a statutory duty applies.
- Confusing an ethical duty to disclose an error with a legal admission of liability.