Approach to gi bleeding

A 65-year-old man with a history of chronic NSAID use and alcohol abuse presents with coffee ground-colored emesis and black, tarry stools. Which of the following is the most appropriate initial step in management?

1: Prescribe PPI therapy.
2: Schedule a colonoscopy.
3: Perform an upper GI endoscopy.
4: Start the patient on somatostatin analogues.