| Course | NR 283 Pathophysiology |
|---|---|
| Week | 8 |
| Paper type | Final case paper |
| Length | About 1,110 words, 3 pages |
| Format | APA 7 student paper |
| School | Chamberlain University |
| Program | BSN (pre-licensure) |
| Updated | October 2026 |
Free sample paper for NR 283 Week 8
Final Case Paper: A 79-Year-Old Woman Brought in Confused With a Fever, and How a Urinary Infection Recruited Six Body Systems in One Day
Student Name
College of Nursing, Chamberlain University
NR 283: Pathophysiology
Instructor Name
Month Day, Year
Final Case Paper: A 79-Year-Old Woman Brought in Confused With a Fever, and How a Urinary Infection Recruited Six Body Systems in One Day
One Presentation
Mrs. H. is 79 and lives in an assisted living apartment. Her daughter brings her to the emergency department at 1500 because she "isn't making sense" and did not recognize her at lunch. Yesterday she complained of burning when she passed urine and needing to go often. Details are composite. On arrival:
Table 1
Findings on Arrival
| Finding | Value |
|---|---|
| Mental status | Oriented to person only; drowsy but rousable |
| Heart rate | 118 |
| Temperature | 38.9 C |
| Blood pressure | 92/54 (her usual is 138/80) |
| Respiratory rate | 24 |
| Oxygen saturation | 95% on room air |
| Urine | Cloudy, foul-smelling; dipstick positive for leukocytes and nitrites |
| White blood cell count | 17,200 per microliter |
| Lactate | 3.1 mmol/L |
| Creatinine | 1.9 mg/dL (baseline 1.0) |
| Platelets | 108,000 per microliter (last year 240,000) |
| Glucose | 182 mg/dL (not diabetic) |
| Sodium | 131 mmol/L |
Note. Every finding in this table is accounted for below, or named as unexplained.
This paper argues that every finding in the table can be explained by one process: a bladder infection that spread to the kidney and then set off a body-wide response. The Third International Consensus Definitions describe sepsis as organ dysfunction, serious enough to threaten life, that results from the body's own poorly regulated reaction to an infection, and they offer a quick bedside screen, qSOFA, that counts a breathing rate of 22 or more, altered mental status and a systolic pressure of 100 or less (Singer et al., 2016). Mrs. H. meets all three. The rest of the paper follows the systems in the order the infection recruited them.
Where the Trouble Starts
The trouble starts in the urinary tract. Bacteria, most often from the patient's own bowel, entered her bladder and multiplied, causing the burning and frequency she reported yesterday. In older women, incomplete bladder emptying and changes after menopause make this more likely. Her cloudy urine with leukocytes and nitrites shows the infection is still active; nitrites are produced by certain bacteria that convert nitrate. Her fever and white count of 17,200 suggest the infection has moved beyond the bladder, likely to the kidney, and that bacteria or their products have reached the bloodstream.
Systems in the Order Recruited
The immune response. White blood cells recognizing bacteria release signaling molecules that coordinate the defense. In sepsis, this signal becomes excessive and widespread. Her fever comes from these signals resetting the brain's temperature set point, and her high white count from the bone marrow releasing more neutrophils.
The blood vessels. The same signals widen blood vessels throughout the body and make capillaries leaky. Her blood pressure has fallen to 92/54 from her usual 138/80, because her vessels have dilated and fluid has leaked out of them into the tissues.
The heart. Her heart rate of 118 is the heart's attempt to maintain blood flow as pressure falls.
The lungs. Her breathing rate of 24 has two causes: the lungs are blowing off carbon dioxide to offset the acid building in her blood, and the inflammatory signals themselves stimulate breathing. Her saturation of 95% shows her lungs are still exchanging oxygen well.
The kidneys. With less blood pressure reaching them, her kidneys filter less; her creatinine has nearly doubled from 1.0 to 1.9, which is acute kidney injury. The infection in the kidney itself may add to this.
The brain. Her confusion is a septic encephalopathy: reduced blood flow, inflammatory signals and fever together disturb brain function. In older adults, confusion is often the first and sometimes the only sign of sepsis.
The blood's clotting system. Her platelets have fallen to 108,000 from 240,000 a year ago, as platelets are consumed by widespread activation of clotting in small vessels.
Metabolism. Her lactate of 3.1 shows that some tissues are not getting enough oxygen for normal metabolism, or that the stress response has changed how cells use energy. Her glucose of 182, in a woman without diabetes, reflects stress hormones raising blood sugar.
Process Against Response
It is important to separate the infection from the body's response to it, because the treatment addresses both. The infection is treated with antibiotics chosen for urinary organisms, given as soon as possible after blood and urine cultures are taken. The response is supported: intravenous fluid to refill the dilated, leaky circulation, oxygen if needed, and medicines to raise the blood pressure if fluid is not enough. Most of the organ dysfunction in this case, including her low blood pressure, kidney injury, confusion and low platelets, is caused not by bacteria directly but by her own response. That is why she can become sicker in the first hours after antibiotics are started, and why the nurse's close watch on her pressure, urine output and mental status matters most in those hours.
Sepsis-3 also defines septic shock as sepsis in which vasopressors are needed to keep the mean arterial pressure at 65 or above and the lactate remains above 2 mmol/L despite adequate fluid (Singer et al., 2016). Mrs. H. does not yet meet that definition; whether she will depends on how her blood pressure responds to the first liters of fluid.
An Ending That Explains
Every finding in Table 1 has been accounted for except one. Her sodium of 131 is mildly low, and this paper cannot explain it with confidence. It may reflect poor intake and a release of antidiuretic hormone with illness, or her daughter may know of a medicine, such as a diuretic, that is not on the list. It is named rather than folded into the sepsis story, because a finding forced into an explanation is more dangerous than one left open for the team to investigate.
The rest of the picture fits one process, and that is what makes the case useful for nursing. The first sign her daughter saw, confusion, was a brain finding, not a urinary one. A nurse who knows that a urinary infection can present as confusion in an older woman, and that confusion with a fever and a fast heart rate is a sepsis screen until proven otherwise, is the person most likely to start the clock early.
If her sodium falls further as she is given fluid, or if her confusion does not lift as her blood pressure and fever improve, those would be the two findings most likely to show that the sepsis story is incomplete.
References
Singer, M., Deutschman, C. S., Seymour, C. W., Shankar-Hari, M., Annane, D., Bauer, M., Bellomo, R., Bernard, G. R., Chiche, J.-D., Coopersmith, C. M., Hotchkiss, R. S., Levy, M. M., Marshall, J. C., Martin, G. S., Opal, S. M., Rubenfeld, G. D., van der Poll, T., Vincent, J.-L., & Angus, D. C. (2016). The Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). JAMA, 315(8), 801-810. https://doi.org/10.1001/jama.2016.0287
Reading the NR 283 Week 8 instructions
The final paper asks you to analyze a complex case using pathophysiology from across the course. Expect the instructions to supply a presentation with many findings and to ask you to explain the underlying process, how it affects multiple systems, how the findings relate and what a nurse would watch for, in a longer APA paper with several scholarly sources. Account for every finding in the case or name it as unexplained. Organize by the process, not by the order of course weeks. Keep citation style consistent to the end. The conclusion should explain the patient, not summarize the paper, and should note what a nurse at the bedside would see first.
Inside the NR 283 Week 8 example
The paper opens with Mrs. H. at 1500, confused and febrile, and a table of findings from mental status to platelets of 108,000. It argues one process explains them, citing Singer et al. (2016). A section traces the infection from bladder to kidney. Systems follow in the order recruited: fever and white count from signaling molecules, pressure falling to 92/54 from leaky vessels, a heart rate of 118, breathing at 24, creatinine nearly doubled, septic encephalopathy, falling platelets and a lactate of 3.1. A section separates treating infection from supporting the response and notes septic shock criteria are not met. The ending names her sodium of 131 as unexplained.
Reading the NR 283 Week 8 grading rubric
Final case papers are usually graded on a coherent explanation of the process, accurate multisystem pathophysiology, accounting for all findings, clinical relevance, use of sources and APA. Coherence carries the most weight, so the paper argues one process and follows it in order. Accounting for every finding is credited heavily, which is why the unexplained sodium is named rather than dropped. Accuracy depends on the direction and cause of each finding. Clinical relevance scores when the paper notes that confusion was the first sign her daughter saw. Consistent APA through a long paper protects points that are not about physiology. The Sepsis-3 definitions anchor the argument.
Common NR 283 Week 8 mistakes, and how to avoid them
The heaviest loss is a tour of every system from the term that never explains the patient. Reused passages from earlier papers, still carrying another case's wording, are easy to spot. A finding from the case missing from the paper becomes more noticeable as the paper grows. Citation style that slips in the second half, an ending that reviews the document and a thorough explanation with nothing about what anyone at the bedside saw all lose points. Naming an unexplained finding is better than forcing it. A diagnosis at the end is fine if the paper earns it. Send the case and your section's length rules for an NR 283 final paper traced through each system.
Get a NR 283 Week 8 example written to your instructions
Send the Week 8 prompt, the rubric, the assigned case if your section supplied one, and whatever citation style your instructor requires. We write a custom example to those instructions, built around the patient in your own case and carried through to the findings, and return it inside 24 to 48 hours. The first is free.
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NR 283 Week 8 questions, answered
What about a finding the paper cannot explain?
It gets named. A case sometimes contains an item the process being argued does not account for, and saying so, with a sentence on what might explain it, reads as control. Deleting it is the worse option, because the person marking wrote the case and knows exactly what is in it. An acknowledged loose end costs far less than a missing one.
Does the paper need a diagnosis at the end?
Only where the prompt asks for one, and then it is the smallest sentence in the document. What this course marks is the account: what was happening, what it produced, and what somebody at the bedside would see and pass on. A named condition sitting on top of that reasoning adds a word. A named condition standing in place of it adds nothing.
Does the paper have to cover every week of the term?
No, and trying to is the usual mistake. The material that returns is whatever this patient needs, so a term covering eight systems might contribute three to the final document. A marker is looking for the presentation to be fully accounted for, not for a checklist of topics to be visited, and a paper that visits everything explains nothing well.
Where can I find a free NR 283 Week 8 sample paper?
The complete Week 8 final case paper on Mrs. H.'s sepsis from a urinary infection, with every finding accounted for system by system, appears in full on this page.
Which finding does the NR 283 Week 8 paper leave unexplained?
Her sodium of 131 is mildly low; the paper suggests poor intake or antidiuretic hormone release with illness but says it cannot explain it with confidence and names it for follow-up.