When is informed consent required?

• A. For invasive or interventional procedures with associated risks
• B. For every routine checkup
• C. Only when anesthesia is used
• D. Only for experimental procedures

Answer: (A)

Informed consent is obtained before any procedure that carries meaningful risk and requires the patient’s voluntary agreement after being told what will happen, why it’s needed, the potential risks and benefits, and any reasonable alternatives.

The best choice captures that idea: when a procedure is invasive or interventional and has associated risks, it’s important for the patient to understand and consent to proceed. This protects patient autonomy and helps ensure they are aware of possible complications, such as bleeding, infection, injury to nearby structures, or allergic reactions to contrast.

Routine checkups are generally low risk and often covered by general treatment consent rather than a formal, detailed informed consent for specific risks. Consent related to anesthesia is important, but the consent for the procedure itself isn’t limited to anesthesia alone. Experimental procedures require consent as well, but that does not exclude the need for informed consent for standard invasive or interventional procedures that carry risk.