structural:expansion, information:classification, structural:summarization
Diagnosis

An auditory-perceptual evaluation is conducted by a Speech-Language Pathologist (S-LP), and allows changes in voice quality to be monitored over time. There are two scales which can be used to subjectively measure voice quality: the GRBAS (grade, roughness, breathiness, asthenia, strain) and the CAPE-V (Consensus Auditory Perceptual Evaluation of Voice). The GRBAS is used to rate the patient's voice quality on 5 dimensions: grade (overall severity), roughness, breathiness, asthenia (weakness) and strain. Each dimension will receive a severity rating from 0 (not present) to 3 (severe). This allows the S-LP to make a judgment about the overall severity of the voice quality. The CAPE-V is used in a similar manner, rating of the dimensions of voice quality on a subjective scale from 0–100, and using this to determine an overall severity score.