Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Yale Pharyngeal Residue Severity Rating Scale
| Vallecula | |||
| I | None | 0% | No residue |
| II | Trace | 1–5% | Trace coating on the mucosa |
| III | Mild | 5–25% | Epiglottic ligament visible |
| IV | Moderate | 25–50% | Epiglottic ligament covered |
| V | Severe | > 50% | Filled to epiglottic rim |
| Pyriform sinus | |||
| I | None | 0% | No residue |
| II | Trace | 1–5% | Trace coating on the mucosa |
| III | Mild | 5–25% | Up wall to quarter full |
| IV | Moderate | 25–50% | Up wall to half full |
| V | Severe | > 50% | Filled to aryepiglottic fold |
