Alarm Fatigue in the ICU: Rogers' Diffusion of Innovations

Introduction to Alarm Fatigue

Theories in nursing generally center on the relationship of four concepts: nursing, environment, person, and health. These concepts are interrelated and impact one another in diverse ways, often surfacing when problems arise that require careful analysis. The issue of alarm fatigue is one such problem in nursing that touches on each of these four concepts. Alarm fatigue can be defined as the exhaustion that occurs when nurses are exposed to a high volume of alarms throughout their shift, causing "sensory overload" and leading nurses to develop a "non-existent response to alarms" (Horkan, 2014, p. 83). Complacency and dissension can follow in the nursing workplace as too many alarms render nurses effectively unresponsive.

Alarms are needed in nursing because they alert nurses and care providers to emergency situations that require immediate action and intervention, especially in the intensive care unit (ICU). However, nurses and staff work in an environment filled with numerous types of alarms spanning a wide range of significance. In facilities where alarms are constant, the risk of nurses "tuning them out" is higher (Horkan, 2014, p. 84). The consequence is significant: when ICU nurses fail to adequately respond to alert systems, patients are placed at risk. This is especially problematic because, as Horkan (2014) points out, "preventable medical errors are among the top 10 causes of death in healthcare facilities" (p. 84). Nurses affected by alarm fatigue in the ICU may involuntarily contribute to this risk factor. Patients are unfortunately on the receiving end of alarm fatigue and face the most significant risk — namely, that they will require emergency attention and nurses will not respond appropriately. Patient safety concerns associated with nursing alarm fatigue include risk of neglect and inattention, which can lead to otherwise preventable harm.

One proposed solution to combating alarm fatigue and increasing patient safety in the ICU is to introduce patient-specific assessment to limit excessive alarms and background noise. This would reduce sound levels in the ICU and lower the risk of alarm fatigue taking hold among nursing staff.

Rogers' Diffusion of Innovations Theory

Rogers' Diffusion of Innovations theory holds that innovation can be communicated through diffusion based on the social setting, the nature of the innovation itself, the relative advantage it offers, its complexity, and the degree to which it is compatible with existing practices and values.

According to the theory, there is a five-step process that can be utilized to facilitate diffusion. Applied to the context of alarm fatigue within the ICU, this process would consist of the following steps:

1) Knowledge of staff
2) Persuasion of staff
3) Decision-making
4) Implementation of evidence-based practice
5) Confirmation of the newly implemented practice

The first step, knowledge of staff, involves obtaining an understanding of the nurses who would be utilizing the patient-specific assessment tool. Understanding the staff is critical to effective and efficient implementation. If the staff and the tool are not a good fit, the implementation will not succeed. Knowing the nurses' needs, desires, and requirements in terms of assessing patients and receiving warnings or alarms is essential at the outset, as it provides a basic foundation upon which the innovation can be established. Foreknowledge of what to expect can also help avoid obstacles down the road.

The second step, persuasion of staff, is built upon the knowledge obtained in the first step. In order to persuade a group, something must be known about that group. Persuading nurses to accept an assessment tool they initially have no desire to use will be more achievable if the source of that reluctance is properly understood. Knowing why nurses feel or think a certain way can be instrumental in guiding them to reconsider their cognitive or emotional responses to a proposed change.

The third step, decision-making, involves the staff making a collective decision about whether to adopt the new assessment approach. The staff must ultimately decide for themselves, as it is their workplace that is under consideration.

The fourth step, implementation, consists of the assessment being put into active use by the staff. This step requires oversight, training, and ongoing support to ensure that the implementation is effective and efficient, with minimal risk of failure.

The final step, confirmation, depends upon conducting an evaluation of the results of the implementation to determine whether the data indicates that the assessment produces positive effects for both nurses and patients.

Conclusion

The need to address nursing staff alarm fatigue is pressing because alarm fatigue directly impacts the quality of care provided to patients. Preventable medical errors can result from nursing alarm fatigue, and for that reason it is essential that every healthcare facility treat the issue as a priority.

The significance of using Rogers' Diffusion of Innovations Theory in conjunction with addressing alarm fatigue lies in the fact that there is currently no relevant data or information regarding the individualization of patient alarms — an approach that could help nurses reduce alarm fatigue and lower the risk of preventable medical errors. An appropriate theoretical construct is therefore needed to guide research on developing and assessing an intervention. In this case, that intervention is the introduction of a patient-specific assessment to limit excessive alarms and background noise. Rogers' Diffusion of Innovations Theory provides a suitable guiding framework through its five-step process, enabling nursing staff to be understood, persuaded, brought to a decision, led through implementation, and engaged in post-implementation assessment. The theory integrates concepts of social setting, innovation, relative advantage, complexity, and compatibility to allow the five-step process to be executed with minimal obstacles.

Developing a patient-specific assessment tool to decrease unnecessary alarms and help nursing staff attend to clinically important alarms is very achievable if the steps outlined above are followed. The crux of the assessment tool depends upon understanding the social setting — that is, the nursing environment in the ICU — and how nurses must recognize signals and discern appropriate responses. Individualizing patient alarms is a process that has not been well researched in this field; there is thus little existing data to draw upon. However, the Diffusion of Innovations Theory is available to assist research and implementation, serving as an efficient outline for how to gather the needed information, implement the innovation, and measure its effectiveness. With this theoretical construct, the development of a patient-specific assessment tool is clearly possible. Whether such a tool could assist in reducing the risk of preventable medical errors is precisely what its implementation would enable researchers to determine. As long as the steps of the Diffusion of Innovations construct are followed, the assessment can be developed with appropriate parameters defined, and the outcomes analyzed following implementation.

References

Despins, L., Scott-Cawiezell, J., & Rouder, J. (2010). Detection of patient risk by nurses: A theoretical framework. Journal of Advanced Nursing, 66(2), 465–474.

Horkan, A. M. (2014). Alarm fatigue and patient safety. Nephrology Nursing Journal, 47(1), 83–85.

Ryherd, E., Waye, K., & Ljungkvist, L. (2008). Characterizing noise and perceived work environment in a neurological intensive care unit. Journal of the Acoustical Society of America, 123(2), 747–756.