Internationally, there is a serious shortage of nurses. One reason for this shortage is due to the work environment in which nurses practice. In a recent review of the empirical human factors and ergonomic literature specific to nursing performance, nurses were found to work in generally poor environmental conditions. DeLucia, Ott, & Palmieri (2009) concluded, "the profession of nursing as a whole is overloaded because there is a nursing shortage. Individual nurses are overloaded. They are overloaded by the number of patients they oversee. They are overloaded by the number of tasks they perform. They work under cognitive overload, engaging in multitasking and encountering frequent interruptions. They work under perceptual overload due to medical devices that do not meet perceptual requirements (Morrow et al., 2005), insufficient lighting, illegible handwriting, and poor labeling designs. They work under physical overload due to long work hours and patient handling demands which leads to a high incidence of MSDs. In short, the nursing work system often exceeds the limits and capabilities of human performance. HF/E research should be conducted to determine how these overloads can be reduced and how the limits and capabilities of performance can be accommodated. Ironically, the literature shows that there are studies to determine whether nurses can effectively perform tasks ordinarily performed by physicians. Results indicate that nurses can perform such tasks effectively. Nevertheless, already overloaded nurses should not be given more tasks to perform. When reducing the overload, it should be kept in mind that underloads also can be detrimental to performance (Mackworth, 1948). Both overloads and underloads are important to consider for improving performance." Each county/ state in which a nurse is licenced has laws concerning how many patients one nurse can tend to (depending on the accuity of the patients needs).
