Impact of a delirium screening tool and multifaceted education on nurses' knowledge of delirium and ability to evaluate it correctly

Abstract

Background: The impact of using a validated delirium screening tool and different levels of education on surgical-trauma intensive care unit (STICU) nurses' knowledge about delirium is unclear.

Objectives: To measure the impact of using the Intensive Care Delirium Screening Checklist (ICDSC), with or without a multi-faceted education program, on STICU nurses' knowledge and perceptions of delirium and their ability to evaluate it correctly.

Methods: The knowledge and perceptions of subject nurses about delirium, and agreement between the independent assessments of delirium by the subject nurse and by a validated judge (who always used the ICDSC), were compared across 3 phases. Phase 1: No delirium screening tool and no education. Phase 2: ICDSC and minimal education (ie, ICDSC validation study only). Phase 3: ICDSC and multifaceted education (ie, pharmacist-led didactic lecture, Web-based module, and nurse-led bedside training).

Results: Nurses' knowledge (mean [SD] score out of 10 points) was similar (P = .08) in phase 1 (6.1 [1.4]) and phase 2 (6.5 [1.4]) but was greater (P = .001) in phase 3 (8.2 [1.4]). Agreement between nurses and the validated judge in the assessment of delirium increased from phase 1 (κ = 0.40) to phase 2 (κ = 0.62) to phase 3 (κ = 0.74). Nurses perceived use of the ICDSC as improving their ability to recognize delirium.

Conclusions: Use of a multifaceted education program improves both nurses' knowledge about delirium and their perceptions about its recognition. Implementation of the ICDSC improves the ability of STICU nurses to evaluate delirium correctly.