Which three elements must be present for informed consent to be valid?

• A. Voluntary agreement, disclosure of information, patient capacity/comprehension
• B. Voluntary agreement, parental consent, patient capacity
• C. Disclosure of information, physician license, patient assent
• D. Voluntary agreement, consent from guardian, patient capacity

Answer: (A)

Informed consent is valid only when three things come together: the patient agrees voluntarily, they are given adequate information, and they have the capacity to understand and make a choice. Voluntary agreement means the decision is free from pressure, coercion, or manipulation. Disclosure of information means the clinician explains what will be done, the risks and benefits, alternatives, and what could happen if no treatment is chosen, in terms the patient can understand. Capacity/comprehension means the patient has the mental ability to understand the information, weigh options, and appreciate the consequences of their decision; if capacity is lacking, a surrogate may be involved, and the consent isn’t valid on the patient's own behalf. Parental or guardian consent is only necessary for those who cannot consent for themselves (such as minors or certain incapacitated individuals), and a physician’s license or patient assent alone do not establish valid informed consent.