Which statement best defines informed consent?

• A. A signature on a consent form is sufficient, regardless of understanding
• B. Informed consent is only required for invasive procedures
• C. It is the patient's right to refuse treatment
• D. A patient’s voluntary agreement to treatment after understanding risks, benefits, and alternatives

Answer: (D)

Informed consent means that a patient has the capacity to decide and is given enough information about a treatment’s risks, benefits, and reasonable alternatives to make a voluntary, knowledgeable choice. Signing a form isn’t enough if the patient doesn’t truly understand what they’re agreeing to, so understanding is essential. It isn’t limited to invasive procedures; many medical decisions require informed consent because they carry risks or alternatives. The patient’s right to refuse is related but separate—the core idea of informed consent is about how decisions are made, specifically the voluntary agreement after understanding the options. That’s why the statement describing a patient’s voluntary agreement to treatment after understanding risks, benefits, and alternatives best captures what informed consent means.