Question category: Neurology
A 58 year old gentleman who is known to drink excessively, presents with a 2 week history of a progressively worsening headache. This has been associated with nausea and vomiting. You notice he appears drowsy and forgetful and that he has a healing cut and bruising on his head. He states he has been told by his family that he is sleeping more than usual. On examination there is nil signs of meningism but you notice a 4/5 power on the left side. Which of the following is the most appropriate step in management?