Why use a specific pain intensity scale in the critical care unit?

Question

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Many critical care units use a specific pain intensity scale because a single tool provides consistency of assessment,management,and documentation.A pain intensity scale is useful in the critical care environment.Asking the patient to grade his or her pain on a scale of 0 to 10 is a consistent method and aids the nurse in objectifying the subjective nature of the patient's pain.However,the patient's tool preference should be considered.

Why Use a Specific Pain Intensity Scale in the Critical