Residency · Residency · Medicine Pediatrics
Medical Ethics in Combined Training: Capacity, Consent, and Assent
Introduction
Med-peds physicians navigate ethical decision-making across the full age spectrum, from neonates to elderly adults. The principles of autonomy, beneficence, non-maleficence, and justice apply universally, but their application varies significantly by developmental stage, legal frameworks, and clinical context. Understanding the distinctions between capacity and competency, informed consent and assent, and the unique ethical challenges at both ends of the age spectrum is essential for ethical clinical practice.
Foundational Ethical Principles
Autonomy: Respect for an individual's right to self-determination; developmentally contingent in pediatrics. Beneficence: Acting in the patient's best interest; the primary standard for pediatric decision-making. Non-maleficence: "First, do no harm"; guides risk-benefit analysis for interventions. Justice: Fair distribution of resources and equitable access to care across populations. These principles may conflict, requiring structured ethical reasoning and, at times, ethics consultation.
Capacity and Competency
Definitions
Competency is a legal determination made by a court; a patient is deemed competent or incompetent. Capacity is a clinical determination made by physicians at the bedside; it is decision-specific and may fluctuate. A patient may have capacity for one decision (e.g., choosing a meal) but not another (e.g., refusing life-saving surgery)
Assessing Decision-Making Capacity in Adults
| Component | Assessment Question | Example of Impairment |
|---|---|---|
| Communicate | Can the patient express a consistent choice? | Patient gives contradictory answers minutes apart |
| Understand | Does the patient comprehend the relevant information? | Cannot paraphrase diagnosis or treatment options |
| Appreciate | Does the patient apply the information to their situation? | Denies having the illness despite evidence |
| Reason | Can the patient weigh risks and benefits? | Cannot explain why one option is preferred over another |
Four components (Aid4 framework): Communicate a choice consistently. Understand relevant information about the condition and proposed treatment. Appreciate how the information applies to their situation. Reason about treatment options by weighing risks and benefits. Capacity assessment should be documented clearly in the medical record. Common conditions affecting capacity: delirium, dementia, intoxication, psychosis, severe depression. Fluctuating capacity: Reassess when clinical status changes; time decisions for periods of maximal lucidity.
Surrogate Decision-Making
When an adult lacks capacity, a surrogate decision-maker is identified following a hierarchy: healthcare proxy > spouse > adult child > parent > sibling (varies by state) Surrogates should use substituted judgment (what the patient would have wanted) when patient preferences are known. When preferences are unknown, the best interest standard applies. Advance directives: Living wills and durable powers of attorney for healthcare document patient preferences.
Informed Consent
Elements of Informed Consent
Disclosure: Nature of the condition, proposed intervention, risks, benefits, alternatives, and consequences of refusal. Understanding: Patient comprehends the information provided. Voluntariness: Decision is free from coercion or undue influence. Capacity: Patient has decision-making capacity (see above) Authorization: Patient agrees to the proposed plan.
Consent in Pediatric Practice
Parents/legal guardians provide informed permission for medical treatment of minors. Parental authority is grounded in the presumption that parents act in their child's best interest. Exceptions to parental consent: Emergency doctrine: Life-threatening situations when parents are unavailable. Mature minor doctrine: Recognized in some jurisdictions for adolescents demonstrating mature judgment. Emancipated minors: Legally independent through marriage, military service, court order, or self-support. Specific conditions: Many states allow minors to consent independently for STI treatment, contraception, substance abuse treatment, and mental health care.
Assent in Pediatric Practice
Assent is the child's agreement to participate in care decisions, appropriate to their developmental level. AAP recommends seeking assent from children aged 7 years and older. Components of assent: Help the child understand their condition in age-appropriate terms. Explain what to expect from tests and treatments. Assess the child's understanding and willingness. Solicit the child's expression of willingness. Dissent (a child's refusal) should be respected when the intervention is not essential; it carries less weight in life-threatening situations.
Ethical Challenges Across the Age Spectrum
Neonatal Ethics
Periviable births (22-25 weeks): Shared decision-making about resuscitation; outcomes data inform but do not dictate decisions. Medical futility: Defining when continued treatment offers no benefit; distinguish from prognostic uncertainty. Best interest vs. parental autonomy: Parents may request interventions that the medical team considers harmful.
Adolescent Ethics
Confidentiality: Adolescents have a right to privacy regarding sensitive health topics; clinicians must understand state-specific minor consent laws. Refusal of treatment: A 16-year-old with cancer refusing chemotherapy presents a challenging intersection of developing autonomy and parental authority. Reproductive health: Access to contraception and pregnancy-related services without parental involvement varies by jurisdiction.
Adult and Geriatric Ethics
Do-Not-Resuscitate (DNR) orders: Should reflect informed patient preferences, not physician assumptions about quality of life. Involuntary hospitalization: For patients who are a danger to self or others due to mental illness; balances autonomy against safety. Elder abuse: Physicians are mandatory reporters; screen for financial, physical, and emotional abuse. Rational suicide and medical aid in dying (MAID): Legal in select jurisdictions; requires careful assessment of capacity and coercion.
Ethics Consultation and Resources
Hospital ethics committees provide guidance on complex cases through formal ethics consultations. Ethics consultation does not override clinical judgment but provides structured analysis and mediation. Institutional ethics committees also address policy development and education. Familiarity with institutional and state-level resources is essential for navigating disputes.
Clinical Pearls
Capacity is a clinical assessment that is decision-specific and may fluctuate; competency is a legal determination by a court. Children aged 7 and older should be engaged in age-appropriate assent, even though parents provide legal consent. The mature minor doctrine and emancipated minor status are jurisdiction-specific; know your state laws. In conflicts between parents and the medical team, ethics consultation and, if necessary, legal involvement may be required. Surrogate decision-makers should use substituted judgment when possible and the best interest standard when patient preferences are unknown.
References
- Appelbaum PS. Assessment of patients' competence to consent to treatment. N Engl J Med. 2007;357(18):1834-1840.
- American Academy of Pediatrics Committee on Bioethics. Informed consent, parental permission, and assent in pediatric practice. Pediatrics. 2016;138(2):e20161484.
- Beauchamp TL, Childress JF. Principles of Biomedical Ethics. 8th ed. Oxford University Press; 2019.
- Larcher V, Craig F, Bhogal K, et al. Making decisions to limit treatment in life-limiting and life-threatening conditions in children: A framework for practice. Arch Dis Child. 2015;100(Suppl 2):s1-s23.