NURS 8114 Week 8 Theory Mapping Paper Example

Earning the Selection Concept by Concept: Mapping the Neuman Systems Model Onto Catheter Infections in Adults on Home Parenteral Nutrition

Student Name

College of Nursing, Walden University

NURS 8114: Theoretical and Scientific Foundations of Nursing

Instructor Name

Month Day, Year

Earning the Selection Concept by Concept: Mapping the Neuman Systems Model Onto Catheter Infections in Adults on Home Parenteral Nutrition

The Problem and the Model

Adults receiving parenteral nutrition at home through a central venous catheter, served by a composite home infusion program, develop catheter-related bloodstream infections that lead to hospital admission, catheter removal and, for some, loss of the only reliable access they have. Infections are a leading complication of home parenteral nutrition, and their reported rates vary widely across programs, suggesting that practice matters (Dreesen et al., 2013). The problem statement approved earlier in the course names the population, the setting and the gap between the program's infection rate and the lower rates reported by well-organized programs.

The Neuman systems model was selected in an earlier paper because it treats the client as a system exposed to stressors and describes nursing as prevention at three levels. This paper tests that selection by mapping each of the model's major concepts onto the problem. In the model's own terms, the client is a system whose core is protected by concentric rings, the innermost lines of resistance, then the usual level of wellness Neuman calls the normal line, then an outer, shifting buffer she calls the flexible line; stressors arise inside the person, between people and in the wider environment, and nursing acts as prevention before, during and after a breach (Neuman & Fawcett, 2011).

Mapping Table

Table 1 summarizes the mapping, and the sections that follow explain each row.

Table 1

Neuman Concepts Mapped to Catheter Infection in Home Parenteral Nutrition

Where the Model Fits Well

The model's strongest fit is its account of stressors and lines of defense. Catheter infections arise when organisms breach a line of resistance, most often at the insertion site or through the catheter hub, and the model's distinction between the flexible line of defense, which changes day to day, and the normal line, which reflects the person's usual state, maps onto a practical distinction: bad days, when a tired caregiver skips a step, versus the person's baseline risk from malnutrition and immune status. Guidance on chronic intestinal failure emphasizes structured training of patients and caregivers in catheter care as central to preventing infection (Pironi et al., 2016), which in Neuman's terms is primary prevention aimed at strengthening the flexible line of defense.

The three levels of prevention also fit the program's work unusually well. Primary prevention is teaching and supplies; secondary prevention is recognizing and responding to early signs of infection, since patients are taught to report fever and chills at once; tertiary prevention is what happens after an infection, including reviewing technique and preventing recurrence.

Where the Model Fits Weakly

The spiritual variable of the client system is the weakest fit. Neuman includes it as one of five variables, and some patients do describe living on nightly infusions as a question of meaning. But the variable has no clear path to infection risk, and forcing a connection would weaken the mapping. The paper marks it as present in the client but not mapped to the problem, rather than inventing a link.

Reconstitution fits only moderately. Neuman describes it as the return to stability after a stressor has breached the lines of defense. After a catheter infection, patients may return to a new baseline rather than the old one, for example with fewer usable veins for future access. The concept captures recovery but not permanent loss, which matters greatly for this population.

How This Differs From the Selection Analysis

The earlier selection paper compared frameworks and chose Neuman's model because it treats infection risk as the product of stressors acting on a protected system. This paper assumes that choice and asks a harder question: does the model fit the problem in detail, concept by concept? A model can win a comparison and still fit poorly in places, and a mapping is where those places become visible. Here the mapping confirms the choice for most concepts and qualifies it for two.

The distinction matters for the project that follows. The selection justified using the model; the mapping tells the project which parts of the model will guide design and measurement, and which parts will be acknowledged but not relied on. A project that cited Neuman's model without this step might claim to address the whole client system when, in practice, it addresses the lines of defense and the three levels of prevention. Stating that scope now keeps the later evaluation honest about what the model explained and what it did not.

What the Mapping Implies for the Project

The mapping supports the earlier selection. Nearly every major concept attaches to a named feature of the problem, and the model points the project toward primary prevention, strengthening the flexible line of defense through caregiver training and supply reliability, while keeping secondary prevention in view. It also suggests measures: competency checks as indicators of the flexible line, infection rates as evidence of breaches of the lines of resistance and time from symptoms to cultures as a measure of secondary prevention.

Every concept was addressed, even those that fit weakly. A mapping that silently dropped the spiritual variable would have looked cleaner and been less honest. Stating where the model does not reach tells the project where it will need other sources, such as clinical guidance on catheter salvage, to fill the gap.

References

Dreesen, M., Foulon, V., Spriet, I., Goossens, G. A., Hiele, M., De Pourcq, L., & Willems, L. (2013). Epidemiology of catheter-related infections in adult patients receiving home parenteral nutrition: A systematic review. Clinical Nutrition, 32(1), 16-26. https://doi.org/10.1016/j.clnu.2012.08.004

Neuman, B., & Fawcett, J. (Eds.). (2011). The Neuman systems model (5th ed.). Pearson.

Pironi, L., Arends, J., Bozzetti, F., Cuerda, C., Gillanders, L., Jeppesen, P. B., Joly, F., Kelly, D., Lal, S., Staun, M., Szczepanek, K., Van Gossum, A., Wanten, G., & Schneider, S. M. (2016). ESPEN guidelines on chronic intestinal failure in adults. Clinical Nutrition, 35(2), 247-307. https://doi.org/10.1016/j.clnu.2016.01.020