This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
The most commonly used scoring system to assess moality and risk of rebleeding in the setting of nonvariceal upper GI bleeding is: 
Select and explain. 
A. Blatchford Score, B. The Clinical Rockall Score, C. Aificial neural network score, D. The complete rockall scoring
D: The complete rockall scoring
Answer: D: The complete rockall scoring 
Explanation: Pre-endoscopy scoring systems for nonvariceal bleeding Blatchford Score The Clinical Rockall Score Aificial neural network score. The most commonly used post endoscopy scoring system is -Complete Rockall Score The Complete Rockall Score includes The Clinical Rockall Score + endoscopic findings. It correlates well with moality but not with the risk for rebleeding. Ref: Sleisenger and Fordtran's, E-9, P-293.