| Course | NSG 120 Nursing Pathophysiology |
|---|---|
| Unit | Unit 2 |
| Paper type | Sign and symptom rationale |
| Length | About 600 words, 5 pages |
| Format | APA 7 student paper |
| School | Herzing University |
| Program | BSN |
| Updated | October 2026 |
Free sample paper for NSG 120 Unit 2
Every Sign Given a Reason: Local and Systemic Inflammation in a 29-Year-Old Woman With a Swollen Jaw From an Infected Lower Molar
Student Name
Department of Nursing, Herzing University
NSG 120: Nursing Pathophysiology
Instructor Name
January 23, 2026
Every Sign Given a Reason: Local and Systemic Inflammation in a 29-Year-Old Woman With a Swollen Jaw From an Infected Lower Molar
The Patient
A composite 29-year-old woman, a bakery shift manager, has had a throbbing ache in her lower right back tooth for a week that she treated with ibuprofen. Two days ago the lower right side of her face began to swell. This morning she felt hot and shivery and could not open her mouth fully. The tooth has a large untreated cavity. Bacteria from the mouth have passed through the decayed tooth into the tissue around the root, where an acute dental abscess, a collection of pus, has formed. These infections are usually polymicrobial, with anaerobic bacteria prominent among the organisms (Robertson & Smith, 2009). Everything below is the body's inflammatory response to that invasion.
Local Signs
Each local sign is paired with the vessel or cell activity that produces it. The five classic signs all come from the same first events: tissue cells and resident immune cells detect bacterial products and damaged cells, and release chemical mediators such as histamine, prostaglandins, and cytokines that act on nearby blood vessels (Rogers, 2023).
| Observed, as a nurse would write it | What accounts for it |
|---|---|
| Redness of the skin over the right lower jaw, about 4 cm across | Mediators relax the smooth muscle of small arterioles, so more blood flows into the capillary beds of the area (hyperemia). More red blood cells near the surface make the skin look red. |
| Right jaw and cheek warm to the touch compared with the left | The same increased flow brings warm blood from the body's core into tissue that is normally cooler, so the area feels hot. |
| Firm swelling of the right lower face; jaw line lost on that side | Mediators make the capillary and venule walls leaky, so plasma proteins and fluid leave the vessels into the tissue (exudate). White blood cells follow and pus collects around the root, adding to the swelling. |
| Throbbing pain, 7 of 10, worse when lying down and when biting | Prostaglandins and bradykinin sensitize and stimulate pain nerve endings. Swelling in a tight space, bone around the root, raises pressure on those nerves; lying down increases blood flow to the head, so the throb worsens. |
| Can open mouth only about two finger widths (trismus) | Loss of function. The swelling and inflammation spread into the chewing muscles near the jaw angle; the muscles tighten and opening the mouth hurts. |
Systemic Signs
These come from a different part of the response. The local mediators do not stay local: signaling proteins called cytokines (interleukin-6 is the best known) enter the circulation and act on distant organs (Medzhitov, 2010).
Fever, 38.6 °C orally, with shivering this morning: circulating cytokines act on the hypothalamus, where they trigger production of prostaglandin E2, which raises the body's temperature set point. Until the body's temperature reaches the new set point, the person feels cold and shivers, which generates heat (Dinarello, 2004). This is why she felt shivery before she felt hot. Her ibuprofen, which blocks prostaglandin production, may have blunted the fever over the past week, which matters when reading her history.
Heart rate 104 at rest: fever raises metabolic demand, and heart rate rises with body temperature; pain and anxiety add to it.
Tired and without appetite: circulating cytokines act on the brain and produce the general "sickness behavior" of fatigue, reduced appetite, and wanting to lie down.
Tender, enlarged lymph node under the right jaw: lymph drains from the infected area to the nearest nodes, where immune cells multiply in response to the bacteria, and the node enlarges and becomes tender. This finding sits between local and systemic, since it is a regional response.
Signs She Does Not Show, and Why the Absences Matter
She is swallowing her own saliva without difficulty and speaking normally. She has no swelling under the tongue or down the front of the neck, and her breathing is quiet and unlabored. These absences are informative: they suggest the swelling has not spread into the floor of the mouth or the deeper spaces of the neck, where swelling can push the tongue upward and narrow the airway. Her blood pressure is 118/74 and she is alert, which suggests the systemic response has not progressed to the widespread vessel changes that lower blood pressure in sepsis. Each absence is recorded, because a change in any of them later would be the most important finding of the day.
Findings to Record Again
Temperature and heart rate, to see whether the systemic response is settling after drainage and treatment. The size of the facial swelling, measured or described against landmarks. How far she can open her mouth. Swallowing, voice, and breathing, since those track spread toward the airway. Pain score. Ranges and descriptions in this document were checked against the course reading (Rogers, 2023).
References
Dinarello, C. A. (2004). Infection, fever, and exogenous and endogenous pyrogens: Some concepts have changed. Journal of Endotoxin Research, 10(4), 201-222. https://doi.org/10.1179/096805104225006129
Medzhitov, R. (2010). Inflammation 2010: New adventures of an old flame. Cell, 140(6), 771-776. https://doi.org/10.1016/j.cell.2010.03.006
Robertson, D., & Smith, A. J. (2009). The microbiology of the acute dental abscess. Journal of Medical Microbiology, 58(2), 155-162. https://doi.org/10.1099/jmm.0.003517-0
Rogers, J. L. (Ed.). (2023). McCance & Huether's pathophysiology: The biologic basis for disease in adults and children (9th ed.). Elsevier.
NSG 120 Unit 2 instructions, in plain terms
Unit 2 asks you to explain the mechanism behind each sign and symptom in a patient. Expect to describe the patient, separate local from systemic findings, explain the cause of each, consider important absent findings and say what should be reassessed. Many versions ask how much mechanism each sign needs and whether you can use a patient from clinical hours. Check whether your section names the condition. Each sign deserves a sentence or two linking it to a specific process, such as vasodilation causing redness. Absent signs matter because they rule out complications. Keep the patient composite. Cite the course text and a review for the mechanisms. Reassessment points connect pathophysiology to nursing practice. Organize findings so the reader can see which process produces which sign. Use plain language with key terms defined.
How this NSG 120 Unit 2 example is built
The rationale opens with the patient's history and examination. The local signs section takes each of the five classic signs in turn and names the vessel or cell activity behind it, such as plasma leaking from dilated vessels causing swelling. The systemic section explains how mediators enter the blood and reset the body's temperature. The absent signs section is the rationale's distinctive move, explaining that normal swallowing and speech suggest the infection has not spread to deeper neck spaces. The reassessment section names temperature and heart rate as markers of whether the systemic response is settling. Each explanation stays short and specific, which keeps the rationale readable while showing that every finding has a cause.
NSG 120 Unit 2 rubric: what full points look like
Herzing's rubric for a sign and symptom rationale typically covers accuracy of mechanisms, separation of local and systemic findings, completeness, attention to absent findings, reassessment and writing. Accuracy of each mechanism is checked sign by sign, so every link from process to finding must be correct. Separation points reward a clear line between local and systemic effects. Completeness criteria look for all major findings. Absent findings often earn credit because they show clinical reasoning. Reassessment points go to findings that track progress. Plain language is valued. A consistent format for each sign helps the reader. Medzhitov's review and Dinarello's paper on fever belong in the APA 7 list.
NSG 120 Unit 2 help: mistakes that cost points
Rationales in Unit 2 commonly lose points by naming signs without explaining what causes them. Another frequent problem is merging local and systemic findings. Students often forget absent findings, which can be as important as present ones. Mechanisms are described at the wrong level, such as saying infection causes fever without the mediator step. Reassessment is missing. The patient description is too thin to anchor the explanation. Sources are limited. The paper drifts into treatment. Terms like pyrogen are used without definitions. Finally, explain why missing signs matter, because graders reward a rationale that uses absences to judge whether the process is contained.
Get a NSG 120 Unit 2 example written to your instructions
Send the Unit 2 instructions and the rubric from your NSG 120 classroom, along with the case the assignment supplies. We write a custom example that pairs each sign with the mechanism behind it, keeps local and systemic apart, and accounts for the findings the patient does not show. First custom sample free, returned in 24 to 48 hours.
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NSG 120 Unit 2 questions, answered
How much mechanism does each sign need?
Enough that somebody who has not read the chapter could follow it, which usually runs to three or four sentences. Going further into cell signaling tends to bury the sign itself, and this course is examining recognition rather than the depth a graduate unit wants. If an entry never returns to the observation it started from, it has gone too far.
Can I use a patient from my clinical hours?
No. Build the case from features that turn up in many patients, and note in one line that it is constructed and carries no identifying detail. What you saw on placement belongs to that setting and to the person it happened to, and it buys you nothing here, since a built case can show exactly the signs your rationale needs.
Does the rationale have to name the cause of the inflammation?
Usually yes, because the signs are read differently depending on what started the response, and your instructions often specify one. What the document should not do is spend its length on that cause. Name it, establish the tissue involved, and put the remaining room into the pairings, which is where the criteria in this unit concentrate.
Where can I find a free NSG 120 Unit 2 sample paper?
Read the complete NSG 120 Unit 2 dental infection rationale here at no charge, every local and systemic sign explained with the important absences. A rationale for a different condition can be prepared on request.
What causes the five signs of inflammation?
Redness and heat come from dilated blood vessels; swelling from fluid leaking into tissue; pain from mediators and pressure on nerves; loss of function from pain and swelling together. This sample links each to a patient with a dental infection.