Interpretation
| Result | Meaning |
|---|---|
| BFCSI ≥ 2 of items 1–14 | Positive screen: complete full BFCRS, consider lorazepam challenge |
| BFCSI 0–1 | Negative screen |
| Severity 0–69 | Higher = more severe; track serially |
Formula
Severity = sum of 23 items, each 0–3 (items waxy flexibility, mitgehen, gegenhalten, ambitendency, grasp reflex and perseveration are 0 or 3 only). Screen = number of items 1–14 rated present; ≥2 = positive.
Clinical pearls
- Rate only items that are clearly present; if uncertain, rate 0 (scale instructions). Unrated items here default to 0.
- Screening item order follows the published form: immobility, mutism, staring, posturing, grimacing, echophenomena, stereotypy, mannerisms, verbigeration, rigidity, negativism, waxy flexibility, withdrawal, excitement.
- A ≥50% fall in severity after IV lorazepam 1–2 mg supports the diagnosis; exclude NMS (rigidity + fever + autonomic instability) before antipsychotics.
Examples
bush francis mutism 3, staring 2, immobility 2, posturing 1, negativism 2catatonia screen: mute, fixed gaze, waxy flexibility presentbfcrs withdrawal 3 rigidity 2 grasp reflex present autonomic 1
FAQ
How many Bush-Francis items are needed to diagnose catatonia?
Two or more of the first 14 items (the Bush-Francis Catatonia Screening Instrument) present is a positive screen. DSM-5 requires 3 of 12 specified signs.
What is the maximum BFCRS score?
69 (23 items × 3). The total is used to track severity and treatment response rather than as a diagnostic cut-off.