EpistemisAPRI Index Calculator
The APRI index assesses the ratio of AST over its upper normal reference limit, directly correlating it with the platelet count:
Required inputs
| Variable | Example value |
|---|---|
| Patient AST (U/L) | 80 |
| AST Upper Normal Limit (ULN) (U/L) | 40 |
| Platelet Count (103/µL or 109/L) | 120 |
Run the calculation in the app
This page explains the score but does not run it. In Epistemis, the calculator validates units, flags values outside physiological ranges, and provides the interpretation that a number alone cannot convey.
Epistemis is educational review material. It is not a medical device, does not diagnose or prescribe treatment, and does not replace formal medical training, current clinical guidelines, or professional clinical judgment.
- Specialty
- Gastroenterology and Hepatology
- Area
- Internal Medicine
- Variables
- 3