Which statement best describes informed consent?

• A. A person's agreement to allow something to happen, made with full knowledge of the risks involved and the alternatives
• B. Consent inferred from conduct
• C. Consent given only verbally
• D. Consent required for all medical procedures

Answer: (B)

Informed consent means a patient agrees to a procedure only after being told what will be done, the potential risks, benefits, and available alternatives, and the decision is voluntary. The best description here is the one that specifies agreement with full knowledge of the risks and alternatives because it captures both understanding and a free, informed choice. Consent inferred from conduct, or implied consent, happens in limited, urgent situations when a patient can’t communicate, but it doesn’t ensure the patient has been informed. Consent given only verbally can be acceptable in some cases, but informed consent typically involves clear information and documentation. And consent isn’t required for every medical action in every situation, especially in emergencies where immediate care is necessary. The key idea is that informed consent is about informed, voluntary agreement, not just assent or action.