What is the scoring range of the Functional Assessment Staging (FAST) scale for dementia?

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Puntuación de la Escala FAST en Demencias

La escala FAST (Functional Assessment Staging) tiene un rango de puntuación de 0 a 60 puntos, donde puntuaciones más altas indican mayor dependencia funcional. 1

Características de Administración

  • La escala FAST se administra mediante entrevista con el cuidador o el paciente para determinar el nivel de deterioro funcional 1
  • Cada etapa se califica en una escala de 4 puntos 1
  • La puntuación total refleja el grado de dependencia funcional del paciente a lo largo de todo el curso de la enfermedad de Alzheimer 2, 3

Validación y Aplicación Clínica

  • La escala FAST ha sido validada tanto en atención primaria como especializada y puede ser administrada por personal clínico o no clínico 1
  • Proporciona información diagnóstica, diferencial diagnóstica y pronóstica valiosa 1, 2
  • Es una herramienta confiable y válida para evaluar el deterioro funcional en pacientes con enfermedad de Alzheimer a lo largo de todo el curso de la enfermedad 4, 3

Correlaciones con Otras Escalas

  • La escala FAST muestra correlaciones significativas con el K-MMSE (r = -0.71, p < 0.001), indicando que a mayor deterioro funcional, menor puntuación cognitiva 4
  • También se correlaciona significativamente con el CDR, CDR-SB, escalas de actividades básicas e instrumentales de la vida diaria (p < 0.001) 4
  • En pacientes con demencia moderada a severa, la FAST se correlaciona con el SIB-Ko (r = -0.54, p < 0.001) y el BPMSE-Ko (r = -0.46, p < 0.001) 4

Consideraciones Clínicas Importantes

  • En la enfermedad de Alzheimer típica, los síntomas progresan secuencialmente a través de las etapas, pero las demencias atípicas pueden no seguir esta secuencia 1
  • La escala FAST puede ayudar a determinar la elegibilidad para cuidados paliativos u hospicio en pacientes con demencia severa 1
  • La mayoría de los pacientes con demencia avanzada que viven en la comunidad (88.1%) tienen demencia severa (etapa FAST 6 o 7) 5
  • La escala FAST elucida un patrón característico de declive funcional progresivo y ordinal en la enfermedad de Alzheimer 4, 3

References

1
Guideline

Functional Assessment Staging for Alzheimer's Disease Management

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

2
Research

The GDS/FAST staging system.

International psychogeriatrics, 1997

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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