It is a simple version of Pain scale which combines visual analogue scale(VAS) and Face Rating Scale. A pain scale measures a patient's pain intensity or other features. Pain scales are based on self-report, observational (behavioral), or physiological data. Self-report is considered primary and should be obtained if possible. Pain scales are available for neonates, infants, children, adolescents, adults, seniors, and persons whose communication is impaired. Pain scores are sometimes regarded as 'the Fifth Vital Sign.'
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