Moderate pain is usually assessed using a pain scale, where patients rate their pain on a scale from 0 to 10, with 0 being no pain and 10 being the worst pain imaginable. Moderate pain typically falls between 4 and 6 on this scale. Nurses often use tools such as the Numeric Rating Scale (NRS) or the Visual Analog Scale (VAS) to gauge pain levels. Accurate pain assessment is crucial for effective pain management.