Capacity and supported decision-making in ID (MEQ)

(i) Definitions. Decision-making capacity is a clinical, decision- and time-specific judgment about whether this person can make this treatment choice now after material information and supports. It is not a global ID label. Legal capacity (UNCRPD Article 12 language) is equal recognition before the law and the right to exercise legal agency, with access to support and safeguards. Clinical mental capacity tests and legal capacity principles are related but not identical; exams expect awareness of the tension without inventing local statute text.^[1][3][4][7]

(ii) Four abilities and supports. Understand relevant information; appreciate the situation and consequences as applied to self; reason (use or weigh) options; communicate a choice. Adapt with Easy Read/pictorial tools, plain language, chunking, extra time, quiet environment, return visits, and a trusted supporter who assists without answering for him. Many people with mild–moderate ID retain capacity for concrete health decisions when disclosure is accessible.^[2][5][6]

(iii) Assessment sequence and documentation. Name the decision (elective laparoscopic cholecystectomy). Speak to him first; position mother as potential supporter, not automatic decision-maker. Optimise communication; disclose condition, procedure, benefits, material risks, alternatives including no surgery. Teach-back each ability; explore fear of hospitals and voluntariness. Document information format, supports offered, ability findings with quotes, conclusion for this decision today, and review plan. Do not accept maternal "I always sign" as legal authority without checking for a lawful substitute order under local legislation.^[1][5][7]

(iv) SDM vs substitute and guardianship principles. Supported decision-making keeps him as decision-maker with tailored help. Substitute decision-making is another person/body deciding under a lawful framework when capacity is absent after reasonable supports. Guardianship principles: least restrictive; limited domain and time; residual autonomy; will and preferences; regular review; safeguards against conflict of interest. Prefer limited orders over plenary convenience.^[3][4][5]

(v) Management branches. If capacity present after supports: respect informed consent or informed refusal; document carefully. If capacity absent and elective: delay if safe, enhance capacity with further education/supports, reassess; if decision still needed, use lawful limited substitute/guardianship or best-interests / will-and-preferences-guided process under local law. Emergency necessity pathways apply only if serious imminent harm cannot wait — not routine elective cholecystectomy. Mental health legislation is a separate track for psychiatric criteria and does not automatically authorise surgery. No invented section numbers.^[1][4][7]