MRCP2-1884

A 42-year-old man presents with frank haematemesis. He is unable to communicate in English, making it difficult to obtain a medical history. Upon examination, he appears to be in shock with a heart rate of 110 beats per minute and a blood pressure of 95/70 mmHg. The patient also exhibits palmar erythema and spider naevi. Abdominal examination reveals ascites and splenomegaly with epigastric tenderness. What is the next best step in the immediate management of this patient?