This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
From the surgery done below name the scoring used to diagnose this 
Select and explain. 
A. ALVARDO, B. RANSON, C. MANTRELS, D. BISAP
A: ALVARDO
Answer: A: ALVARDO 
Explanation: Ans. (a) ALVARDORef: Surgery Sixer 3rd Edition Page 442ALVARDO score is done to diagnose Acute appendicitis by clinical and Lab values.The mnemonic for this score is - MANTRELS* M- Migratory Pain (1 Score)* A- Anorexia* N- Nausea (1 Score)* T- Tenderness (2 Score)* E- Elevated Temperature (1 Score)* L- Leucocytosis (2 Score)* S- Shift of Neutrophils to left (1 Score)A value of > 7 is strongly suggestive of Appendicitis