A escalas descritiva simples, numérica e analógica visual são unidimensionais, pois avaliam apenas a intensidade da dor, e universais, pois são compreendidas em qualquer língua ou cultura.
Essas escalas foram desenvolvidas para avaliar a dor em seres humanos a partir do autorrelato e adaptadas para uso em animais por meio da avaliação de um observador. O valor “0” (ausência de dor) é arbitrário, pois nunca se sabe se o animal não sente dor.
Escala Descritiva Simples
1 – Sem dor
2 – Dor leve
3 – Dor moderada
4 – Dor intensa
Escala Numérica: números ordinais de 0 (ausência de dor) a 10 (pior dor possível).
Escala analógica visual
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