Implementation of a diagnostic stewardship intervention to improve blood-culture utilization in 2 surgical ICUs: Time for a blood-culture change.

OBJECTIVE: We compared the number of blood-culture events before and after the introduction of a blood-culture algorithm and provider feedback. Secondary objectives were the comparison of blood-culture positivity and negative safety signals before and after the intervention. DESIGN: Prospective cohort design. SETTING: Two surgical intensive care units (ICUs): general and trauma surgery and cardiothoracic surgery. PATIENTS: Patients aged ≥18 years and admitted to the ICU at the time of the blood-culture event. METHODS: We used an interrupted time series to compare rates of blood-culture events (ie, blood-culture events per 1,000 patient days) before and after the algorithm implementation with weekly provider feedback. RESULTS: The blood-culture event rate decreased from 100 to 55 blood-culture events per 1,000 patient days in the general surgery and trauma ICU (72% reduction; incidence rate ratio [IRR], 0.38; 95% confidence interval [CI], 0.32-0.46; P < .01) and from 102 to 77 blood-culture events per 1,000 patient days in the cardiothoracic surgery ICU (55% reduction; IRR, 0.45; 95% CI, 0.39-0.52; P < .01). We did not observe any differences in average monthly antibiotic days of therapy, mortality, or readmissions between the pre- and postintervention periods. CONCLUSIONS: We implemented a blood-culture algorithm with data feedback in 2 surgical ICUs, and we observed significant decreases in the rates of blood-culture events without an increase in negative safety signals, including ICU length of stay, mortality, antibiotic use, or readmissions.

Implementing a Standardized Communication Tool in an Intensive Care Unit.

BACKGROUND: Effective communication is essential in critical care settings. Use of the SBAR (Situation, Background, Assessment, Recommendation) tool has been shown to standardize and improve communication among health care providers. LOCAL PROBLEM: This quality improvement project was designed to improve communication in an intensive care unit that lacked a standardized communication protocol. Communication practices differed greatly between nurses and advanced practice providers. As a result, patient safety was put at risk owing to incomplete, inaccurate, or delayed information when clinical concerns were reported or escalated. METHODS: This project used a pre-post design in which surveys were used to gather information on staff perceptions of communication and collaboration between nurses and advanced practice providers before and after an educational intervention. The 2 groups received identical education on SBAR guidelines adapted for use in the intensive care unit setting and patient safety. RESULTS: Results showed improvement in all areas of communication. Significant improvements were found on the General Perceptions subscale among advanced practice providers (P = .04) and among nurses (P = .007). In the combined study population, improvements were observed on all subscales, with significant results for the Open Communication (P = .03) and General Perceptions (P = .002) subscales. A significant increase was found in the percentage of nurses using the SBAR tool after the intervention (95%) compared with before the intervention (66%; P < .001). CONCLUSION: Implementation of the SBAR communication tool significantly improved general perceptions of communication in this intensive care unit.

Effect of bundle set interventions on physiologic alarms and alarm fatigue in an intensive care unit: A quality improvement project.

OBJECTIVE: To determine if the implementation of an evidence-based bundle designed to reduce the number of physiologic monitor alarms reduces alarm fatigue in intensive care nurses. DESIGN: This quality improvement project retrospectively reviewed alarm data rates, types, and frequency to identify the top three problematic physiologic alarms in an intensive care unit. An alarm management bundle was implemented to reduce the number of alarms. The Nurses' Alarm Fatigue Questionnaire was used to measure nurses' alarms fatigue pre- and post-implementation of the bundle. SETTING: A combined medical surgical intensive care unit at an accredited hospital in the United States. RESULTS: The top three problematic alarms identified during the pre-implementation phase were arrhythmia, invasive blood pressure, and respiration alarms. All three identified problematic physiologic alarms had a reduction in frequency with arrhythmia alarms demonstrating the largest decrease in frequency (46.82%). When measuring alarm fatigue, the overall total scores increased from pre- (M = 30.59, SD = 5.56) to post-implementation (M = 32.60, SD = 4.84) indicating no significant difference between the two periods. CONCLUSION: After implementing an alarm management bundle, all three identified problematic physiologic alarms decreased in frequency. Despite the reduction in these alarms, there was not a reduction in nurses' alarm fatigue.

Suitability of capillary blood glucose analysis in patients receiving vasopressors.

BACKGROUND: Glycemic control in critically ill patients decreases infection and mortality. Patients receiving vasopressors have altered peripheral perfusion, which may affect accuracy of capillary blood glucose values measured with point-of-care devices. OBJECTIVES: To compare capillary and arterial glucose values measured via point-of-care testing (POCT) with arterial glucose values measured via clinical chemistry laboratory testing (CCLT) in patients after cardiothoracic surgery. To determine if vasopressors or diminished peripheral perfusion influence the accuracy of POCT values. METHODS: In a prospective, convenience sample of 50 adult postoperative cardiothoracic patients receiving insulin and vasopressors, 162 samples were obtained simultaneously from capillary and arterial sites during insulin infusion and tested via both POCT and CCLT. Clarke error grid analysis and ISO 15197 were used to analyze level of agreement. Two-way analysis of variance was used to analyze differences in glucose values with respect to vasopressor use and peripheral perfusion. RESULTS: An unacceptable level of agreement was found between the capillary POCT results and arterial CCLT results (only 88.3% of values fell in zone A, or within the ISO 15197 tolerance bands). Arterial POCT results showed acceptable (94.4%) agreement with CCLT results. Vasopressor use had a significant effect on the accuracy of arterial blood glucose values (F=15.01; P<.001). CONCLUSIONS: Even when the more accurate POCT with arterial blood is used, blood glucose values are significantly less accurate in patients receiving more than 2 vasopressors than in patients receiving fewer vasopressors. CCLT may be safer for titrating insulin doses in these patients.