Total RIPASA score is the sum of weighted items from the original score.

Item	Points
Male sex	1
Female sex	0.5
Age below 40 years	1
Age 40 years or older	0.5
Right iliac fossa pain	0.5
Pain migration to right iliac fossa	0.5
Nausea or vomiting	1
Anorexia	1
Symptoms below 48 h	1
Symptoms 48 h or longer	0.5
Right iliac fossa tenderness	1
Guarding	2
Rebound tenderness	1
Rovsing sign	2
Fever	1
Raised white cell count	1
Negative urinalysis	1
Foreign national or non-local resident	1

Common probability bands are below 5, 5 to 7, 7.5 to 11.5, and at least 12 points.

RIPASA Score for Acute Appendicitis