Capacity, communication needs and supported decision-making

Capacity is the ability to make a particular decision at the time it needs to be made. Support staff are not required to perform formal capacity assessments for clinical consent, but they must recognise when a person's understanding or free choice may be unclear.

Support staff should help the person to understand and then involve a registrant or manager if consent remains uncertain, rather than attempting to determine capacity alone.

Start from the presumption that adults can make their own decisions unless there is a reason to doubt it. Do not assume lack of capacity because of age, disability, dementia, learning disability, mental health, neurodivergence, appearance, language, distress or because someone makes an unexpected choice.

How support staff can help decision-making

• Use plain language: avoid jargon and check whether the person wants information repeated or written down.
• Reduce pressure: give time where possible and avoid asking sensitive questions in a queue.
• Offer communication support: use interpreter routes, hearing support, large print or accessible formats according to local policy.
• Ask the patient first: companions can help, but do not automatically speak for the person.
• Watch for uncertainty: confusion, distress, inconsistent answers or apparent coercion should prompt a pause.
• Escalate early: involve a registrant or manager when the decision affects care, safety, cost, refusal or safeguarding.

Decision-specific and ongoing

Capacity applies to the specific decision at hand. Someone may manage a simple booking but need help with a complex clinical or financial choice. Capacity can fluctuate - timing, fatigue, pain, anxiety, medication, illness or sensory overload can reduce decision-making ability at a particular moment.

Four-nations mental capacity context

Support decision-making before doubting it. Speak to the patient, adapt communication, reduce pressure and escalate when consent is uncertain.