How is patient capacity assessed?

• A. Ability to understand information, appreciate consequences, reason about options, and communicate a choice
• B. Age and level of education
• C. Physical ability to sign a form
• D. Social support and caregiver input

Answer: (A)

Capacity is assessed by looking at four abilities specific to the decision at hand: can the patient understand the information about the condition and the options, can they appreciate how those options would affect their own situation, can they reason about the risks, benefits, and alternatives, and can they communicate a choice consistently. This framework focuses on the patient’s actual cognitive and communication abilities as they relate to the particular medical decision, recognizing that capacity can vary over time and with the situation.

Age or education level does not determine capacity, since people with limited education can still understand and decide, while older age does not automatically mean incapacity. Similarly, being physically able to sign a form does not demonstrate capacity; someone might lack the ability to sign but still understand, appreciate, and reason about the decision, or vice versa. Input from family or caregivers can illuminate the patient’s values and typical preferences, but it does not by itself establish capacity. In practice, clinicians document the patient’s ability to understand, appreciate, reason, and communicate the decision to determine capacity, and they reassess if the patient’s condition changes.