The document discusses various scenarios that may arise regarding surrogate decision makers for patients lacking capacity. It provides guidance on addressing situations such as surrogates being intermittently available or impaired, patients having multiple or outdated advance directives, and surrogates making inconsistent or unknown decisions. The document recommends exploring availability issues with surrogates, determining validity of conflicting directives, reframing questions based on patient's wishes, obtaining affidavits in cases of disputed relationships, and seeking guardianship if no surrogate can be identified.