The Itch Nobody Charts: Applying the Symptom Management Theory to Uremic Pruritus in a Hemodialysis Unit, From Symptom Experience to Strategies to Outcomes
[Student Name]
University of Phoenix
DNP/705: Philosophy, Theory, and Science for Nursing Practice
Week 4 Assignment
[Instructor Name]
[Date]
The unit and patients are composites written for a model paper.
I am a nurse practitioner in a 60-station outpatient hemodialysis unit. When I began asking patients directly about itching, many described it as their worst symptom, worse than fatigue. One man said he scratches until he bleeds and sleeps three hours a night. Yet itch rarely appears in our charts or care plans. This paper applies the Symptom Management Theory to uremic pruritus in our unit.
The Theory
Dodd et al. (2001) describe the revised Symptom Management Model, developed and tested at the University of California, San Francisco. It has three dimensions: symptom experience, including perception, evaluation and response to symptoms; symptom management strategies, including who delivers them, what, when, where, why, how much and how; and outcomes, including symptom status, functional status, quality of life, emotional status, mortality and costs. These dimensions sit within three domains of nursing science: the person, health and illness and the environment. The authors note that patients and families often carry responsibility for symptom management and that few models had been tested empirically.
The Problem
Drawing on a multinational cohort of patients receiving hemodialysis, Pisoni et al. (2006) found that 42% of hemodialysis patients experienced moderate to extreme pruritus, with large differences between countries and facilities, from 5% to 75%. Patients with moderate to extreme pruritus were more likely to feel drained, sleep poorly and have depression, and had higher mortality. The facility variation suggests that practice patterns matter.
The theory's first dimension, symptom experience, is empty until someone asks; in our unit, no one was asking.
Symptom Experience
The theory begins with how patients perceive, evaluate and respond to symptoms (Dodd et al., 2001). Our unit had no routine assessment. I introduced a 0-to-10 worst itch numeric rating scale at monthly visits. In the first month, 38% of patients rated their itch at 4 or higher. Their evaluations varied: some saw itch as part of dialysis and had stopped mentioning it, others believed it meant their treatment was failing. Responses included scratching, cold showers, over-the-counter lotions and avoiding sleep in shared beds.
Person Domain
Personal factors shape symptom experience. Older patients and those with diabetes had more dry skin. Patients with depression rated their itch higher and reported more sleep disturbance, consistent with the associations Pisoni et al. (2006) reported.
Health and Illness Domain
Illness factors include adequacy of dialysis, phosphorus and parathyroid hormone levels and dry skin. I reviewed these for each patient with moderate or severe itch. Several had high phosphorus levels, and some were receiving less dialysis than prescribed because they left sessions early.
Environment Domain
Environmental factors include the unit's temperature, patients' home conditions and the culture of the unit. Our unit is cool, and patients bring blankets that trap heat and worsen itch for some. More important, the unit's culture treated itch as trivial, and staff did not ask about it.
The Patients' Own Strategies
The theory treats patients and families as agents of symptom management, not only recipients. Several patients had found strategies that helped them: a woman who applied cool cloths during dialysis, a man who switched to cotton sheets. Asking about and sharing these strategies respects patients' expertise and adds low-cost options to the plan.
Staff Knowledge
In a brief survey, most of our nurses did not know that itch was linked to poor sleep and mortality. A 15-minute in-service using the international data and patients' own descriptions changed how staff viewed the symptom.
Symptom Management Strategies
The theory asks who delivers strategies, what, when, how much and how (Dodd et al., 2001). Our plan includes: nurses asking about itch monthly and documenting scores; the dietitian addressing phosphorus control; the nephrologist reviewing dialysis adequacy; and patients using fragrance-free emollients twice daily, supplied by the unit. For moderate to severe itch not responding to these measures, a medication is considered.
A New Pharmacologic Option
Fishbane et al. (2020) randomly assigned 378 hemodialysis patients with moderate to severe pruritus to difelikefalin, a kappa opioid receptor agonist given intravenously after dialysis, or placebo for 12 weeks. A reduction of at least 3 points in the worst itch score occurred in 51.9% of patients on difelikefalin and 30.9% on placebo, with improvement in itch-related quality of life. Diarrhea, dizziness and vomiting were more common with difelikefalin. This gives our unit an evidence-based option delivered at the chair, which fits the theory's attention to where and how strategies are delivered.
Timing and Place of Strategies
The theory's attention to when and where strategies are delivered shaped our schedule. Emollients are applied before sessions, when patients arrive, and itch is assessed at the chair during the first hour, when patients are settled and staff have time. Medication for severe itch is given at the end of dialysis, when it can be administered through the circuit.
Outcomes
Following the theory, outcomes go beyond the itch score. We measure symptom status with the worst itch scale, functional status with sleep hours, quality of life with an itch-specific scale and emotional status with depression screening. At the unit level, we track the percentage of patients with moderate to severe itch and the proportion assessed each month.
Early Results
After three months, the proportion of patients assessed monthly rose from none to 92%. Among patients with moderate or severe itch at baseline, median worst itch scores fell from 7 to 5, and patients reported sleeping about an hour more per night. These are early and uncontrolled results, but they suggest that systematic attention changes the symptom's course.
How the Theory Changed Practice
Without the theory, our response might have been to add a lotion. The theory required us to assess the experience systematically, consider personal, illness and environmental factors and define who does what. It also broadened outcomes to include sleep, mood and quality of life.
Linking Dimensions
The theory's dimensions are connected: how patients perceive itch shapes whether they report it, which shapes whether strategies are offered, which shapes outcomes. In our unit, the break was at the first link. Patients who had stopped mentioning itch never entered the management dimension, which is why routine assessment was the first and most important change.
Limits of the Theory
The theory is broad and does not specify which strategies work for a given symptom; evidence must fill that gap. It also underplays patients' economic constraints, such as the cost of emollients, which our unit addressed by supplying them.
Conclusion
Uremic pruritus affects a large share of hemodialysis patients and is linked to poor sleep, depression and mortality, yet it went unassessed in our unit. The Symptom Management Theory structured our response through symptom experience, management strategies and outcomes, within the person, illness and environment domains, and a recent trial offers a new treatment. Applying the theory turned an overlooked symptom into a managed one.
References
Dodd, M., Janson, S., Facione, N., Faucett, J., Froelicher, E. S., Humphreys, J., Lee, K., Miaskowski, C., Puntillo, K., Rankin, S., & Taylor, D. (2001). Advancing the science of symptom management. Journal of Advanced Nursing, 33(5), 668-676. https://doi.org/10.1046/j.1365-2648.2001.01697.x
Fishbane, S., Jamal, A., Munera, C., Wen, W., & Menzaghi, F. (2020). A phase 3 trial of difelikefalin in hemodialysis patients with pruritus. New England Journal of Medicine, 382(3), 222-232. https://doi.org/10.1056/NEJMoa1912770
Pisoni, R. L., Wikström, B., Elder, S. J., Akizawa, T., Asano, Y., Keen, M. L., Saran, R., Mendelssohn, D. C., Young, E. W., & Port, F. K. (2006). Pruritus in haemodialysis patients: International results from the Dialysis Outcomes and Practice Patterns Study (DOPPS). Nephrology Dialysis Transplantation, 21(12), 3495-3505. https://doi.org/10.1093/ndt/gfl461
How this DNP 705 Week 4 example is structured
The DNP/705 Week 4 work usually applies a middle-range theory to a practice problem. This paper describes the theory, maps the problem onto its dimensions and domains and shows how the theory changes what is assessed, what is done and what is measured. Students search this week as DNP 705 Week 4, DNP705 Wk 4 or DNP/705 Wk 4; all three are the same assignment.
DNP/705 Week 4 questions, answered
What does DNP/705 Week 4 usually ask for?
Many sections ask students to select a middle-range theory and apply it to a practice problem, showing how its concepts guide assessment, intervention and outcomes.
What is the Symptom Management Theory?
A middle-range theory developed at the University of California, San Francisco, with three dimensions, symptom experience, symptom management strategies and symptom status outcomes, set within the domains of person, health and illness and environment.
How common is itch in hemodialysis patients?
An international study found that 42% of hemodialysis patients had moderate to extreme pruritus, which was associated with poor sleep, feeling drained, depression and higher mortality.
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