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. Continue to provide life support until a thorough search for a guardian is completed: While continuing life support is essential, the delay involved in waiting for a guardian to be located could jeopardize the patient's life. Immediate surgery is necessary to save the client, and life support is unlikely to be sufficient on its own. B. Carry on with surgical preparation of the client without a signed informed consent: In cases of medical emergencies where the patient is unable to provide consent (such as being unresponsive), the healthcare team can proceed with necessary life-saving procedures without waiting for formal written consent. The principle of implied consent applies in this scenario, where it is assumed the patient would consent to life-saving treatment if they were able to do so. C. Ask the client's friend to sign the informed consent since the client is unresponsive: The friend does not have the legal authority to provide informed consent unless they are a legal guardian or have been granted specific decision-making powers. Consent should not be obtained from a non-guardian in this situation. D. Notify the unit manager that an emergency court order is needed to allow surgery: While emergency court orders can sometimes be used in certain legal situations, they are unnecessary when the immediate need for life-saving surgery overrides the formalities of obtaining a signed consent. The focus should be on proceeding with treatment to preserve life.