An unresponsive victim of a diving accident is brought to the emergency department where it is determined that immediate surgery is required to save the client's life. The client is accompanied by a close friend, but no family members are available. Which action should the nurse take first?

A. Notify the unit manager that an emergency court order is needed to allow surgery: Obtaining a court order can take significant time and is not feasible in a life-threatening emergency. Delaying surgery could result in serious harm or death. B. Continue to provide life support until a thorough search for a guardian is completed: While life support stabilizes the client, delaying definitive treatment when immediate surgery is required may worsen outcomes. Emergency protocols allow treatment without consent in life-threatening situations. C. Carry on with surgical preparation of the client without a signed informed consent: In emergencies where the client is unresponsive and immediate surgery is necessary to preserve life, healthcare providers can proceed without consent under the principle of implied consent. This ensures prompt, potentially life-saving intervention. D. Ask the client's friend to sign the informed consent since the client is unresponsive: A friend does not have legal authority to provide consent unless formally designated as a healthcare proxy. Relying on the friend could delay urgent care and is not legally valid.