Functional Oral Intake Scale (FOIS)
Functional Oral Intake Scale (FOIS; Crary 2005): 7-level ordinal scale of oral intake in dysphagia.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Functional level of oral intake
- Level 4 — Total oral intake of a single consistency
Result: FOIS Level 4 — total oral intake of a single consistency.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Levels 1-3
- tube feeding: 1 no oral intake, 2 minimal oral, 3 tube supplements + consistent oral.
- Levels 4-7
- total oral: 4 single consistency, 5 multiple (special prep), 6 avoid specific foods, 7 no restrictions.
What you enter
- Functional level of oral intake (1-7)
How this is calculated
Crary MA, Mann GD, Groher ME. Initial psychometric assessment of a functional oral intake scale for dysphagia in stroke patients. Arch Phys Med Rehabil. 2005;86(8):1516-1520. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.