| Course | NS465 Functional Nutrition |
|---|---|
| Unit | Unit 3 |
| Paper type | Systems matrix |
| Length | About 640 words, 5 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Nutrition Science |
| Updated | October 2026 |
Free sample paper for NS465 Unit 3
Three Clusters on One Grid: A Unit 3 Systems Matrix for a Middle School Art Teacher, With Its Judgment Calls Marked
[Student Name]
Purdue University Global
NS465: Functional Nutrition
Unit 3 Systems Matrix
[Instructor Name]
[Date]
The client and her history are composite; the functional medicine overview, the textbook that introduced the matrix and the vasomotor symptom study cited are real.
About the Matrix
The matrix used here comes from the functional medicine model, which organizes a client's story by body systems and by the factors that came before and around a problem, rather than by diagnosis (Jones, 2010). It is meant to help a practitioner see connections and decide where to ask more questions (Hanaway, 2016). It is a way of organizing information, not a test, and the placement of each item depends on the person filling it in.
The Client
Carol is 52 and has taught art at a middle school for twenty-two years. She came in for fatigue, broken sleep and weight gain around her waist over the past two years. Her periods became irregular about three years ago, and she has hot flashes several times a night. She has had acid reflux after dinner for about a year. She takes no regular medicines.
Antecedents, Triggers and Mediators
1. Antecedents: mother had type 2 diabetes in her sixties; Carol had gestational diabetes with her second child.
2. Triggers: perimenopause, beginning about three years ago; a move to a larger classroom load two years ago.
3. Mediators: night waking from hot flashes; evening grading that pushes dinner to 8:30.
The Seven Functional Areas
1. Assimilation: reflux after late dinners; no other digestive symptoms.
2. Defense and repair: no frequent infections; occasional eczema on her hands from art materials.
3. Energy: afternoon fatigue; low motivation to exercise.
4. Biotransformation and elimination: one or two glasses of wine most evenings; regular bowel movements.
5. Transport: blood pressure slightly up at her last checkup; no other findings.
6. Communication: hot flashes, irregular periods, low mood on bad nights, central weight gain.
7. Structural integrity: wrist strain from years of demonstrations; no other issues.
Lifestyle Factors
Sleep: about five and a half broken hours. Exercise: none regular since the classroom change. Nutrition: skipped breakfast, school cafeteria lunch, late dinner. Stress: high during grading periods. Relationships: supportive spouse; adult children nearby.
The Three Clusters
The first cluster sits in communication and sleep: hot flashes, night waking and low mood. The second sits in energy and lifestyle: fatigue, no exercise and broken sleep. The third sits around blood sugar: central weight gain, a family history of diabetes, past gestational diabetes and late, large dinners.
The three clusters are where I chose to look first, not proof that these systems are the cause, because another practitioner could reasonably group the same facts differently.
Where the Judgment Calls Are
Placing weight gain in communication rather than energy was a choice; it fits both. Wine could sit under biotransformation or under sleep, since alcohol disrupts sleep later in the night. Reflux could be a separate issue or part of the late-dinner pattern. Hot flashes are a normal part of the menopause transition for many women, and for women whose symptoms begin early in that transition they can last many years (Avis et al., 2015). Seeing them on the grid does not mean they need fixing through nutrition.
What the Matrix Suggests Doing Next
The matrix points to questions, not answers. Sleep appears in two clusters, so it may be the most useful starting point. The blood sugar cluster and her history mean she should ask her physician about screening for diabetes before any nutrition plan. Hot flashes and mood belong in a conversation with her physician about menopause options. Nutrition work could begin with dinner timing and alcohol, which touch reflux, sleep and blood sugar together.
References
Avis, N. E., Crawford, S. L., Greendale, G., Bromberger, J. T., Everson-Rose, S. A., Gold, E. B., Hess, R., Joffe, H., Kravitz, H. M., Tepper, P. G., & Thurston, R. C. (2015). Duration of menopausal vasomotor symptoms over the menopause transition. JAMA Internal Medicine, 175(4), 531-539. https://doi.org/10.1001/jamainternmed.2014.8063
Hanaway, P. (2016). Form follows function: A functional medicine overview. The Permanente Journal, 20(4), 109-111. https://doi.org/10.7812/TPP/16-109
Jones, D. S. (Ed.). (2010). Textbook of functional medicine. Institute for Functional Medicine.
Reading the NS 465 Unit 3 instructions
The third NS465 unit asks students to complete a functional systems matrix for a case and explain what it shows. Prompts typically supply a template with functional areas, lifestyle factors and antecedents, triggers and mediators. Introduce the matrix honestly as an organizing framework rather than a diagnostic test. Present the client briefly. Fill in antecedents, triggers and mediators with specific facts. Place each finding in a functional area and complete the lifestyle row. Identify where findings cluster. Then explain which placements were judgment calls and how another practitioner might differ. Turn the clusters into next steps, separating questions for nutrition from referrals to a physician. Keep claims within what a framework can support. Most matrices run two to three pages with the commentary.
How this NS465 Unit 3 example is built
The sample begins by describing the matrix's origin and purpose and stating that placement depends on the person filling it in. The client summary covers her symptoms, her timing and her medicines. Antecedents, triggers and mediators are listed with concrete examples, from family diabetes to evening grading. The seven functional areas each receive one or two entries, followed by the lifestyle row. The three clusters are named in a single paragraph. A highlighted sentence concedes that the clusters are a choice of where to look first. A section lists the judgment calls, from weight gain to wine, and notes that hot flashes are a normal transition symptom. Next steps send blood sugar and menopause questions to the physician and start nutrition with dinner timing and alcohol.
NS465 Unit 3 rubric: what earns full points
Systems matrices are usually graded on accurate placement of findings, recognition of patterns, honest discussion of the tool's limits and appropriate next steps. Much of the credit rests on the interpretation rather than the filled grid itself. Instructors reward commentary that explains why items were placed where they were and acknowledges alternatives. Describing the matrix as a framework rather than a test shows critical understanding. Clusters should be tied to specific findings. Next steps must respect scope, with diagnostic questions sent to a physician. A clear, readable layout matters. Sources describing the framework and supporting any clinical claims should be cited in APA 7.
NS465 Unit 3 help from the desk
Weak matrices fill every box but never interpret the pattern. Others treat clusters as diagnoses, implying the framework has found a cause. Writers sometimes force every symptom into a functional area when it belongs in lifestyle or antecedents. Normal life-stage changes, such as menopause, get framed as dysfunction to be fixed. Next steps jump to supplements or protocols without referrals. The tool's limits go unmentioned. Citations are missing. If you have a case to map but cannot decide where findings belong or what the clusters mean, our team can help you place each item and write commentary that explains your choices.
Get an NS465 Unit 3 example written to your instructions
Attach the supplied case and whichever matrix template the course uses for Unit 3, with the rubric. Every placement gets argued, shading is defined in words, repeated items are flagged, and medical questions are marked as the physician's on the grid itself. Receive it in 24-48h, commentary included, and pay nothing for a first sample. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
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NS465 Unit 3 questions, answered
Is the systems matrix a validated assessment tool?
Not in the sense a screening questionnaire is. It is an organizing framework developed within functional medicine education, useful for arranging a long history, but no study shows that its placements or load ratings predict anything. Saying so plainly in your commentary is accurate and usually earns credit, since the course asks you both to use the framework and to evaluate it.
What if an item fits in no area at all?
Put it in the lifestyle row or the antecedents column if it belongs there, or list it beside the grid as unplaced. Forcing an item into an area to keep the grid tidy misrepresents it. Unplaced items are often social or financial, such as the cost of food or caring for a relative, and they may matter more to the plan than anything inside the grid.
Should the matrix include lab results?
Only results the case supplies, entered as reported with source and date, and interpreted no further than the course permits. Standard tests a physician ordered belong in the history. Specialty panels sold directly to consumers, such as organic acid or food sensitivity tests, should be described critically, since their clinical validity is disputed, and never used on their own to justify a cluster.
Where can I find a free NS465 Unit 3 sample paper?
This page offers a complete Unit 3 systems matrix for a 52-year-old art teacher, with antecedents, seven functional areas, the lifestyle row, three clusters and commentary marking each judgment call.
Is the functional systems matrix a diagnostic test, per the NS465 Unit 3 sample?
No. The sample treats it as a way of organizing a client's story to decide where to ask more questions. Where findings cluster reflects the practitioner's judgment, and another practitioner could group the same facts differently.