Declining Cognition and Consent for Biofeedback
Mrs. S, 79, has been on hemodialysis for 2 years. Over 3 months her daughter reports increasing forgetfulness; Mrs. S now asks the same questions repeatedly within a session and once could not recall why she was in the unit. She is pleasant and agrees to "whatever you think is best" when biofeedback is offered. She lives alone and manages her own medications. Her daughter is present today and asks that biofeedback be started "to calm her down," adding that she worries her mother cannot make decisions anymore.
1. How do you approach consent and capacity for biofeedback in this situation?
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Do not assume incapacity, and do not accept a blanket "whatever you think."
- Capacity is decision-specific and presumed unless there is evidence otherwise. The question is whether she can understand, appreciate, reason about, and express a choice about this intervention.
- The daughter's concern is important information but not a determination. Report the cognitive changes to the nephrology team for evaluation; a delirium screen is warranted because acute changes in a dialysis patient can reflect metabolic or infectious causes.
- Use a teach-back approach with Mrs. S: explain biofeedback simply, ask her to describe it back, and ask what she wants. If she cannot engage in that exchange, involve the appropriate decision-making process per policy and law.
- Respect her autonomy where she can exercise it; involve the daughter as a supportive participant, not automatically as a substitute decision-maker.
2. What would you do if Mrs. S cannot demonstrate understanding, and how does that change the plan?
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Escalate the decision appropriately; keep the intervention low-risk and supportive.
- Document the specific observations that suggest she cannot engage in informed consent (repeated questions, disorientation, inability to restate the purpose).
- Refer to the care team for formal cognitive and delirium assessment and, if indicated, to the appropriate substitute decision-maker process per organizational policy and law.
- In the interim, avoid initiating a formal biofeedback program framed as treatment. Simple, comforting presence and gentle breathing guidance can continue as basic supportive care within her expressed preferences.
- Keep the daughter informed and included, and clarify roles so she does not feel dismissed.
Principle: protect the patient from decisions made about her without adequate process, while not withholding comfort care she appears to welcome.