Table 1: Improved Alvarado score (MANTRELS).
| Migration | 1 point |
| Hyperesthesia in the RLQ | |
| Massouh sign | |
| Anorexia | 1 point |
| Acetonuria | |
| Hamburger test | |
| Nausea/Vomiting | 1 point |
| Tenderness in the RLQ | 2 points |
| Tenderness on percussion in right lumbar area, K-sign, psoas sign, obturator sign | |
| Rebound pain in the RLQ | 1 point |
| Rovsing sign, cough test, inspiration or expiration test, heel drop test, hop test, pain on walking, pain with jolts or road bumps |
|
| Elevation of temperature (37.3 ℃ or more) | 1 point |
| Leukocytosis (> 10.000 cells/mm3) | 2 points |
| Shift to the left | 1 point |
| Stabs or bands (> 5%) | |
| Segmented neutrophils (> 75%) | |
| Headache, body aches, chills | -2 points |
| Total | 10 points |