Q. A 62-year-old male presents to the emergency department with complaints of sudden onset, bright red blood in his vomit. He mentions that he felt a sensation of indigestion earlier in the day, followed by some mild, vague abdominal pain. He appears pale, slightly confused and reports that he feels light-headed. His wife, who accompanied him, adds that he has been experiencing unexplained weight loss and occasional episodes of fatigue over the last few months. She also reveals that he has a history of heavy alcohol consumption. On physical examination, he is hypotensive with a blood pressure of 90/60 mmHg and tachycardic with a heart rate of 105 beats per minute. He exhibits mild abdominal distention and splenomegaly on palpation, with no evident abdominal tenderness. His mucous membranes look pale and dry, indicating possible dehydration. Lab findings indicate a hemoglobin of 8 g/dL, platelet count of 90,000 per µL, serum albumin of 2.5 g/dL, and a prolonged prothrombin time (PT) of 15 seconds. His liver function tests reveal aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels of 150 U/L and 130 U/L, respectively. Following the endoscopic management of his condition, which of the following is the most appropriate next step in this patient's management?