How should consent be addressed for vulnerable populations (minors, cognitively impaired) in practice?

• A. Obtain assent when appropriate, obtain surrogate consent from legal guardians, and maintain capacity assessments and documentation.
• B. Ignore assent and obtain only guardian consent.
• C. Consent is not needed for vulnerable populations.
• D. Only obtain consent from the patient.

Answer: (A)

Consent for vulnerable populations requires balancing respect for a person’s autonomy with protection when their capacity may be limited. The best approach is to involve the individual to the extent possible by obtaining assent—an affirmative agreement to the plan that the person can understand and express, even if they cannot provide full legal consent. When the person cannot give informed consent due to cognitive impairment or being a minor, a surrogate decision-maker such as a legal guardian or legally authorized representative should be engaged to provide consent on the person’s behalf. This surrogate should act in the best interests of the individual and consider any known preferences or values the person has expressed in the past.

Alongside assent and surrogate consent, it’s important to perform ongoing assessments of the person’s capacity for each specific decision and to document all assessments, conversations, and decisions. This documentation supports transparency, accountability, and the ability to re-evaluate consent as circumstances change.

This approach is better than ignoring assent, assuming no consent is needed, or requiring consent only from the patient. Ignoring assent neglects the person’s evolving autonomy; stating that consent isn’t needed ignores ethical and legal protections; and relying solely on the patient’s consent excludes those who lack capacity and omits the necessary role of guardians or representatives.