Abstract
A valid pain assessment is the foundation of adequate pain management. Pain assessment
can be challenging, especially in adult intensive care unit (ICU) patients who are
unable to self-report. In such situations, relying on observational assessment tools
is an alternative strategy. This review describes and analyzes the development and
psychometric properties of pain assessment tools developed for use with nonverbal
critically ill adults. A total of 32 relevant papers that described the psychometric
properties of eight pain assessment tools were included. The scale development process,
psychometric properties (i.e., reliability and validity), and feasibility of pain
assessment tools were analyzed using a 0 to 20 scoring system. Each pain assessment
tool was scored independently by two reviewers. Of the eight behavioral pain scales
developed for use in adult ICU patients, the Behavioral Pain Scale (BPS) and the Critical-Care
Pain Observation Tool (CPOT) are considered to be the most valid and reliable for
this purpose, according to the available evidence. Behavioral pain scales may be viable
alternatives to assessing pain in ICU patients who are unable to self-report, but
only valid, reliable, and feasible scales should be used for this purpose.
Keywords
pain assessment tools - reliability - validity - intensive care unit - nonverbal adult