cliot (version 1.0.0)

bush_francis_catatonia_scale: Bush-Francis Catatonia Rating Scale (BFCRS)

Description

Calculates the total score for the Bush-Francis Catatonia Rating Scale, the standard instrument for diagnosing and assessing the severity of catatonia. It evaluates 23 items on a scale of 0 to 3. The first 14 items constitute the screening instrument; presence of 2 or more of these items warrants a full evaluation.

Usage

bush_francis_catatonia_scale(excitement, immobility, mutism, staring, posturing,
                             grimacing, echophenomena, stereotypy, mannerisms,
                             verbigeration, rigidity, negativism, waxy_flexibility,
                             withdrawal, impulsivity, automatic_obedience, mitgehen,
                             gegenhalten, ambitendency, grasp_reflex, perseverance,
                             combativeness, autonomic_abnormality)

Value

A list containing:

BFCRS_Total_Score

The sum of all 23 items (Range 0-69).

Screening_Result

"Positive Screen" if >=2 of the first 14 items are present (>0).

Screening_Items_Present

Count of positive screening items.

Arguments

excitement

Numeric (0-3). Extreme hyperactivity, constant motor unrest.

immobility

Numeric (0-3). Stupor, hypoactivity.

mutism

Numeric (0-3). Verbally unresponsive.

staring

Numeric (0-3). Fixed gaze, little or no blinking.

posturing

Numeric (0-3). Catalepsy, maintenance of posture.

grimacing

Numeric (0-3). Maintenance of odd facial expressions.

echophenomena

Numeric (0-3). Echopraxia or Echolalia.

stereotypy

Numeric (0-3). Repetitive, non-goal-directed movements.

mannerisms

Numeric (0-3). Odd, purposeful movements.

verbigeration

Numeric (0-3). Repetition of phrases or sentences.

rigidity

Numeric (0-3). Maintenance of position against resistance.

negativism

Numeric (0-3). Resistance to moving instructions.

waxy_flexibility

Numeric (0-3). Slight resistance to positioning.

withdrawal

Numeric (0-3). Refusal to eat/drink/interact.

impulsivity

Numeric (0-3). Sudden inappropriate behavior.

automatic_obedience

Numeric (0-3). Exaggerated cooperation.

mitgehen

Numeric (0-3). "Going with" body movements.

gegenhalten

Numeric (0-3). Resistance proportional to applied force.

ambitendency

Numeric (0-3). Motor indecision.

grasp_reflex

Numeric (0-3). Forced grasping.

perseverance

Numeric (0-3). Repetitive return to previous topic/movement.

combativeness

Numeric (0-3). Violence directed at others.

autonomic_abnormality

Numeric (0-3). Vital sign abnormalities.

References

Bush G, Fink M, Petrides G, Dowling F, Francis A. Catatonia. I. Rating scale and standardized examination. Acta Psychiatr Scand. 1996;93(2):129-36. doi:10.1111/j.1600-0447.1996.tb09814.x

Examples

# Example 1: Positive Screen, High Severity
# Immobility(3), Mutism(3), Staring(2), Posturing(2), Rigidity(3)
# Others 0
bush_francis_catatonia_scale(0, 3, 3, 2, 2, 0, 0, 0, 0, 0, 3, 0, 0, 0,
                             0, 0, 0, 0, 0, 0, 0, 0, 0)

# Example 2: Negative Screen
# All 0
bush_francis_catatonia_scale(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                             0, 0, 0, 0, 0, 0, 0, 0, 0)