You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is True about Visual analog Scale and explain in detail?
Visual Analog Scale: Used for Measurement of Pain 10 cms (0-100 mm) long plastic scale Used when pt is illiterate, in ICU, under anesthesia, pediatric pts.