Infection-control case
Students analyze a hospital scenario to identify breaks in the chain of infection and prescribe controls.
Written analysis identifying the weakest chain-of-infection link in the scenario, naming the aseptic intervention, and stating one limitation.
- 1Do thisStudents analyze a hospital scenario to identify breaks in the chain of infection and prescribe controls.
- 2Use this resource
- 3Submit thisPre-lab: Written analysis identifying the weakest chain-of-infection link in the scenario, naming the aseptic intervention, and stating one limitation.
- 4Submit it here
- 1CMSD website. Go to clevelandmetroschools.org and click the Clever button.
- 2Clever. Clever opens. Sign in if it asks.
- 3Microsoft (district) login. Use your district Microsoft account (the one for school).
- 4Schoology. Open Schoology, then your class, then Assignments, and find the file named below.
The file to submit is named: Principles of Biomedical Technology (Principles of Biomedical Science) › Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. › Pre-labOpen Schoology
- CER:
- Claim, Evidence, Reasoning — make a claim, back it with evidence, explain your reasoning.
- SOP:
- Standard Operating Procedure — the exact steps to follow (especially in a lab).
- Tracker:
- Your PLTW progress log where you record completed evidence.
- myPLTW:
- The PLTW course site where you do the online activities — you open it through Schoology.
Minute-by-minute · 80-minute block
💡 Big idea: Identifying the weakest link in a chain of infection is the first step in designing a targeted, evidence-based control.
- 0-8 minRecord the hand hygiene and PPE donning/doffing SOP in your notebook.
- 8-18 minRead the hospital scenario; identify variables that raise or lower transmission risk.
- 18-40 minTrace the chain of infection for the case patient; mark the weakest link.
- 40-58 minWrite a specific aseptic intervention that breaks the weakest link, with chain-based reasoning.
- 58-70 minDocument one data limitation or assumption that could change the recommendation.
- 70-80 minShare chain finding with a partner; confirm you agree on which link is weakest.
- • You traced the chain of infection in notes yesterday; today you apply it to a real hospital scenario.
- • The SOP for PPE donning and doffing is a handling and preparation skill tested on WebXam 072110 strand 1.
- • Your recommendation must name the specific chain link it breaks, not just say 'wash hands more.'
- • One limitation is required: every control has a failure mode, and naming it is intellectual honesty.
- 1Record the SOP for hand hygiene and PPE donning and doffing.
- 2Identify the variables in the scenario that raise or lower transmission risk.
- 3Trace the chain of infection for one patient and locate the weakest link.
- 4Recommend a specific aseptic intervention that breaks that link.
- 5Document one limitation in your data or assumptions.
- • Identify a specific break in the chain of infection from the scenario.
- • Recommend a control measure and state one limitation.
- • Each variable in a hospital scenario (patient immune status, staff behavior, environment) maps to a specific chain link.
- • An effective infection-control recommendation names the exact link it targets, not just a general hygiene tip.
- • Data limitations reveal where the recommendation could fail if assumptions are wrong.
Your PLTW work today
Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. · Infection-control case
Day 3 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Open myPLTW and locate the Lesson 3.1 Nosocomial Nightmare infection-control case or scenario activity. Use the platform scenario to supplement or verify your scenario analysis.
Submit any platform prompts for this Lesson 3.1 activity before end of the period.
Platform prompts should be done by mid-period; the written recommendation is today's primary product.
Written recommendation with chain-link citation plus platform submission.
All PLTW activities are completed inside the PLTW course environment — this page only gives direction. Submit producibles on Schoology.
Today's PLTW tracker
Check things off as you work, then submit. This tells Mr. Mendoza how you're doing so he can help the class. It does not replace turning in your producible on Schoology.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. · Infection-control case
Open myPLTW and locate the Lesson 3.1 Nosocomial Nightmare infection-control case or scenario activity. Use the platform scenario to supplement or verify your scenario analysis.
Platform prompts should be done by mid-period; the written recommendation is today's primary product.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Students analyze a hospital scenario to identify breaks in the chain of infection and prescribe controls.
- Record the SOP for hand hygiene and PPE donning and doffing.
- Identify the variables in the scenario that raise or lower transmission risk.
- Trace the chain of infection for one patient and locate the weakest link.
- Recommend a specific aseptic intervention that breaks that link.
- Document one limitation in your data or assumptions.
Pre-lab: Written analysis identifying the weakest chain-of-infection link in the scenario, naming the aseptic intervention, and stating one limitation.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| Record the SOP for hand hygiene and PPE donning and doffing. | _______ |
| Identify the variables in the scenario that raise or lower transmission risk. | _______ |
| Trace the chain of infection for one patient and locate the weakest link. | _______ |
| Recommend a specific aseptic intervention that breaks that link. | _______ |
| Document one limitation in your data or assumptions. | _______ |
Working solo? Put your own name in "Who" for every row.
- Identify a specific break in the chain of infection from the scenario.
- Recommend a control measure and state one limitation.
Resources & readings
Hand-picked materials for this lesson. Class file items open the document directly; the rest are vetted readings and interactives from other biomedical programs.
This unit's vocabulary
Tap the speaker to hear a term. Weekly vocabulary task: add two of these terms to your notebook glossary with a definition and an example in your own words.
WebXam practice
Cumulative WebXam review
A quick mixed-review pulling questions from earlier units plus today, so the WebXam material stays fresh.
Where this leads — careers
What today's skills lead to. These are real health-science careers this course builds toward. Tap one to see, on the US Department of Labor's O*NET site, what the job actually involves, what it pays, and how fast it is growing.
What to do if you were absent
Today is individual PLTW work, so do exactly what we did in class, from home: complete the same PLTW target above, then submit your Pre-lab.
Open Schoology (CMSD) and keep goingHow to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
CDC Infection ControlOptional extra credit (async)
You've passed Unit 2, so the optional extra-credit track is open. Complete reserved-unit work from home (virtual labs included) for extra credit, all submitted on Schoology.
Open the extra-credit track- CompleteEvery required part of the artifact is present, nothing left blank.
- AccurateThe science and the data are correct and match the evidence.
- Scientific reasoningYou explain your claim with evidence and reasoning (CER), not just an answer.
- Professional communicationClear, organized, labeled, and written the way a clinician or scientist would.
- SubmittedTurned in the right way (Schoology for routine work) and confirmed.
Drop your Tue, Nov 10, 2026 · Infection-control case here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
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