PeaceHealth Sponsored Capstone

Post-Discharge Sepsis Recovery App

Post-Discharge Sepsis Recovery App

Post-Discharge Sepsis Recovery App

Project overview
Project overview

I worked with PeaceHealth & Sound Physicians to lower sepsis readmission rates after hospital discharge

I worked with PeaceHealth & Sound Physicians to lower sepsis readmission rates after hospital discharge

As part of my University of Washington iSchool capstone, my team worked with PeaceHealth, one of the largest nonprofit health systems in the Pacific Northwest. Dr. Keith, a Sound Physicians hospitalist treating sepsis cases firsthand at PeaceHealth, brought us one of the hospital's most persistent problems: sepsis patients return at higher rates than almost any other condition, and the current system leaves critical gaps.

The objective was clear: build a post-discharge tool that helps patients catch early warning signs of infection, ultimately lowering sepsis readmission rates.

I worked with PeaceHealth & Sound Physicians to lower sepsis readmission rates after hospital discharge

Role
Role
Role

Lead UX Designer/
Front-end

Lead UX Designer/
Front-end

Team
Team
Team

2 Designers
2 Developers
1 Product Manager

2 Designers
2 Developers
1 Product Manager

2 Designers
2 Developers
1 PM

Duration
Duration
Duration

6 months

6 months

YEAR
YEAR
YEAR

January – June 2026

January – June 2026

January – June 2026

impact
impact

Delivered, adopted, and moving toward patients

Delivered, adopted, and moving toward patients

Delivered, adopted, and moving toward patients

We delivered the full P0 scope our sponsor set, and the project outgrew the capstone: PeaceHealth and Sound Physicians took ownership at handoff and are carrying it into IRB review and clinical testing, with a patent application underway. In usability testing with survivors and clinical nurses, the product scored 85.6 on the System Usability Scale, well above the industry average of 68, and the issues it surfaced were fixed in the final build.

We delivered the full P0 scope our sponsor set, and the project outgrew the capstone: PeaceHealth and Sound Physicians took ownership at handoff and are carrying it into IRB review and clinical testing, with a patent application underway. In usability testing with survivors and clinical nurses, the product scored 85.6 on the System Usability Scale, well above the industry average of 68, and the issues it surfaced were fixed in the final build.

85.6
85.6
85.6
SUS SCORE
SUS SCORE

A+ on the Sauro-Lewis grading scale

A+ on the Sauro-Lewis grading scale

Industry average: 68

3 WKS
3 Weeks
3 WKS
MVP FRONT END
MVP FRONT END

Built in the final three weeks through the Figma MCP pipeline I introduced

Built in the final three weeks through the Figma MCP pipeline I introduced

My developers’ estimate: well past the deadline

IRB
IRB
IRB
CLINICAL PATHWAY
CLINICAL PATHWAY

Handed off to PeaceHealth and Sound Physicians for review and clinical testing

Handed off to PeaceHealth and Sound Physicians for review and clinical testing

Patent application underway

problem
problem

1 in 3 sepsis patients return to the hospital within 90 days of discharge

1 in 3 sepsis patients return to the hospital within 90 days of discharge

1 in 3 sepsis patients return to the hospital within 90 days of discharge

Sepsis is one of the highest-readmission conditions in healthcare. 1 in 5 patients return within 30 days; within 90 days, that climbs to 1 in 3. Hospitals equip patients with everything they need to recover at home: a multi-page After Visit Summary, verbal instructions, and medication lists. The problem isn't access to information, it's retention. Patients say "yes, I understand" during discharge, but within minutes of walking out the door, they forget almost all of it. There's no system in place to reinforce that information once they're gone.

"I thought I understood everything at the hospital, but realized I was confused once I got home." - Sepsis survivor

How might we help sepsis survivors recognize warning signs early enough to get help before readmission?

How might we help sepsis survivors recognize warning signs early enough to get help before readmission?

How might we help sepsis survivors recognize warning signs early enough to get help before readmission?

solution
solution

Introducing Tillage

Introducing Tillage

Introducing Tillage

Sepsis recovery starts here. Tillage helps patients and their caregivers learn about key warning signs, assess daily risk levels, and detect possible recurrences early, replacing a stack of paper with an active, ongoing companion for recovery.

The daily check-in asks one question at a time

The daily check-in asks one question at a time

The daily check-in asks one question at a time

The daily check-in has four sections: Safety Check, Overall Well-Being, Vital Signs, and Body & Symptoms. I designed the format, question order, and wording for patients recovering from sepsis: with 81.4% of surveyed survivors too exhausted for basic self-care, long forms were never an option. Every question also adapts its wording when a caregiver is checking in on a patient's behalf.

The daily check-in has four sections: Safety Check, Overall Well-Being, Vital Signs, and Body & Symptoms. I designed the format, question order, and wording for patients recovering from sepsis: with 81.4% of surveyed survivors too exhausted for basic self-care, long forms were never an option. Every question also adapts its wording when a caregiver is checking in on a patient's behalf.

Every check-in ends with a risk level and one clear next step

Every check-in ends with a risk level and one clear next step

Every check-in ends with a risk level and one clear next step

After submitting the check-in, patients land on the Your Results screen. The algorithm outputs one of four risk levels: Low, Medium, High, or Emergency, each paired with clinically informed guidance on what to do next. If a safety-check question flags symptoms that require immediate medical attention, the screen turns red and lets the patient call 911 directly from the app.

After submitting the check-in, patients land on the Your Results screen. The algorithm outputs one of four risk levels: Low, Medium, High, or Emergency, each paired with clinically informed guidance on what to do next. If a safety-check question flags symptoms that require immediate medical attention, the screen turns red and lets the patient call 911 directly from the app.

The dashboard puts recovery at a glance

The dashboard puts recovery at a glance

The dashboard puts recovery at a glance

The dashboard is the home base of the app. Patients see their current risk at a glance, scan their tailored reminders, and access everything else from here.

The dashboard is the home base of the app. Patients see their current risk at a glance, scan their tailored reminders, and access everything else from here.

Past check-ins reveal slow-building warning signs

Past check-ins reveal slow-building warning signs

Past check-ins reveal slow-building warning signs

Sepsis recurrence builds over days or weeks, with declining vitals, worsening fatigue, and shrinking appetite. View history lets patients and their caregivers track symptoms over time to catch slow-building warning signs early.

Sepsis recurrence builds over days or weeks, with declining vitals, worsening fatigue, and shrinking appetite. View history lets patients and their caregivers track symptoms over time to catch slow-building warning signs early.

Education modules make key sepsis information stick

Education modules make key sepsis information stick

Education modules make key sepsis information stick

Written at a fifth-grade reading level, the education modules break key sepsis information into short, digestible lessons. Each one draws on credible sources like the CDC and the Sepsis Alliance and ends with a quick quiz, so patients retain what they read rather than just skimming. Modules unlock as they are completed, guiding users through a clear, sequential flow of content.

Written at a fifth-grade reading level, the education modules break key sepsis information into short, digestible lessons. Each one draws on credible sources like the CDC and the Sepsis Alliance and ends with a quick quiz, so patients retain what they read rather than just skimming. Modules unlock as they are completed, guiding users through a clear, sequential flow of content.

Settings shape the check-in around each patient

Settings shape the check-in around each patient

Settings shape the check-in around each patient

Patients configure their personal information, medical history, and available equipment during onboarding. These inputs shape the check-in questions they see and the reminders they receive.

Patients configure their personal information, medical history, and available equipment during onboarding. These inputs shape the check-in questions they see and the reminders they receive.

RESEARCH: literature review
RESEARCH: literature review

The literature demanded reinforcement, low cognitive load, and caregiver support

The literature demanded reinforcement, low cognitive load, and caregiver support

The literature demanded reinforcement, low cognitive load, and caregiver support

I pulled the key findings from a 25-paper literature review my team compiled covering sepsis epidemiology, post-discharge outcomes, caregiver capacity, and health literacy. Three findings defined what the product needed to address:

I pulled the key findings from a 25-paper literature review my team compiled covering sepsis epidemiology, post-discharge outcomes, caregiver capacity, and health literacy. Three findings defined what the product needed to address:

44.2% → 17.2%
44.2% → 17.2%
44.2% → 17.2%

Drop in 30-day sepsis readmissions when patients received repeated education and structured follow-ups, per Yale's multi-modal framework.

Drop in 30-day sepsis readmissions when patients received repeated education and structured follow-ups, per Yale's multi-modal framework.

Yale School of Nursing, 2017

6.1% → 16.7%
6.1% → 16.7%
6.1% → 16.7%

Moderate-to-severe cognitive impairment nearly triples after sepsis, with ~60% of survivors still affected 8+ years later.

Moderate-to-severe cognitive impairment nearly triples after sepsis, with ~60% of survivors still affected 8+ years later.

PMC10546999, 2023

76–89%
76–89%
76–89%

Of unmet post-sepsis caregiver needs stem from caregivers not knowing how to help, not from absence.

Of unmet post-sepsis caregiver needs stem from caregivers not knowing how to help, not from absence.

PMC9482946, 2022

Research: competitive analysis
Research: competitive analysis

A 25-product audit revealed the gap was the product

A 25-product audit revealed the gap was the product

A 25-product audit revealed the gap was the product

I mapped patterns across a 25-product competitive audit spanning clinical monitoring systems, consumer health apps, and educational resources. Three patterns defined the gap:

01 : Most sepsis tools are designed for clinicians. Sepsis ImmunoScore and SepsisDialog operate inside hospital workflows.

02: Patient-facing health apps are too broad for sepsis. Ada Health and Buoy Health cover general symptom checking, not recovery.

03: No direct competitors or reference patterns that combine daily risk, education, and trend tracking. Every product solves a slice, none covers the full post-discharge window.

I mapped patterns across a 25-product competitive audit spanning clinical monitoring systems, consumer health apps, and educational resources. Three patterns defined the gap:

01 : Most sepsis tools are designed for clinicians. Sepsis ImmunoScore and SepsisDialog operate inside hospital workflows.

02: Patient-facing health apps are too broad for sepsis. Ada Health and Buoy Health cover general symptom checking, not recovery.

03: No direct competitors or reference patterns that combine daily risk, education, and trend tracking. Every product solves a slice, none covers the full post-discharge window.

Research: user and stakeholder analysis
Research: user and stakeholder analysis

Survivors and clinicians surfaced the same three failures

Survivors and clinicians surfaced the same three failures

Survivors and clinicians surfaced the same three failures

I drew insights from sponsor conversations with Dr. Keith, 43 survey responses from sepsis survivors and caregivers, and interviews with clinicians. Three insights consistently surfaced:

01: Retention, not comprehension, is the problem. 32.6% of patients thought they understood discharge instructions, but were confused once home.

02: Physical exhaustion blocks self-care. 81.4% of respondents were too weak to take care of themselves after discharge.

03: Resources don't reach patients. 53.5% received no sepsis-specific materials. The AVS gets thrown in a bag and never opened.

I drew insights from sponsor conversations with Dr. Keith, 43 survey responses from sepsis survivors and caregivers, and interviews with clinicians. Three insights consistently surfaced:

01: Retention, not comprehension, is the problem. 32.6% of patients thought they understood discharge instructions, but were confused once home.

02: Physical exhaustion blocks self-care. 81.4% of respondents were too weak to take care of themselves after discharge.

03: Resources don't reach patients. 53.5% received no sepsis-specific materials. The AVS gets thrown in a bag and never opened.

ideation
ideation

Individual brainstorms produced 40+ ideas before we converged

Individual brainstorms produced 40+ ideas before we converged

Individual brainstorms produced 40+ ideas before we converged

Each team member brainstormed individually before we converged, generating 40+ ideas. My ideas focused on reducing cognitive load during check-ins, extending support to caregivers, and reinforcing recovery through active engagement, all of which were directly informed by the research insights.

One question at a time
Single question per screen with progress bar
usability
Body & symptom tracking
Self-assessments of symptoms and physical state
monitoringusability
Adaptable user flow
Flow adjusts based on patient history and responses
usabilitymonitoring
PCP follow-up reminders
Prompts to schedule and attend primary care visits
monitoring
Voice input & single-tap
Reduce interaction cost for exhausted users
usability
Akinator-style risk quiz
Probabilistic quiz that narrows in on risk
monitoringusability
Caregiver check-ins
Family or caregiver completes check-ins on patient's behalf
supportmonitoring
Education modules
Active reinforcement learning for sepsis recovery
supportusability
Caregiver training
Modules to equip caregivers with recovery knowledge
support
ideation: matrix
ideation: matrix

I mapped every idea against impact and feasibility

I mapped every idea against impact and feasibility

I mapped every idea against impact and feasibility

I led the team in mapping every idea to Impact versus Feasibility, and co-working with our developers to scope technical constraints for prioritization.

I led the team in mapping every idea to Impact versus Feasibility, and co-working with our developers to scope technical constraints for prioritization.

ideation: Prioritization
ideation: Prioritization

Three tiers focused P0 on what the research demanded

Three tiers focused P0 on what the research demanded

Three tiers focused P0 on what the research demanded

From the matrix, I sorted features into three tiers. Through iterative discussions with my team and Dr. Keith, I focused the P0 scope on daily risk assessment, education, and reminders, features that directly address the retention gap, cognitive load, and the lack of at-home monitoring identified in our research. I documented remaining features for future phases.

P0
Must Have
Symptom tracker & risk assessment
Daily check-in with weighted scoring
monitoringusability
Emergency escalation
911 escalation when symptoms flag immediate medical attention
monitoring
Interactive education modules
Sepsis education in plain, easy-to-read language
supportusability
Secure login / logout
User authentication with session management
usability
HIPAA-aware data handling
Protected health information compliance
monitoring
P1
Should Have
Patient dashboard
Recovery hub with risk and reminders at a glance
usabilitymonitoring
View history
Track symptom trends over days and weeks
monitoring
Caregiver access mode
Caregiver completes check-in on behalf of patient
support
Automated reminders
Personalised recovery reminders on the dashboard
monitoringsupport
P2
Nice to Have
Patient portal integration
Connect with EHR / MyChart systems
monitoring
Multi-language support
Translation for non-English-speaking patients
usabilitysupport
Other resource integration
Telehealth booking, direct 911 calling, and similar
monitoringsupport
design: System
design: System

I built the design system before a single screen

I built the design system before a single screen

I built the design system before a single screen

Since no direct competitors or reference patterns existed for post-discharge sepsis recovery, I started by setting ground rules: typography, color, spacing, breakpoints, and components. The design system provided the team with a single source of truth, ensuring every component remained consistent as the product scaled to hundreds of screens.

design: breakthrough
design: breakthrough

A week-long fever changed how I designed every screen after it

A week-long fever changed how I designed every screen after it

A week-long fever changed how I designed every screen after it

During early design, I came down with a severe fever and spent a week in and out of urgent care. The first few days, activities of daily living were a real struggle.

When the doctor walked me through recovery instructions, I followed everything in the moment. But afterward, it was very difficult to remember everything they said.

Within that state, I started thinking about design. I kept coming back to Hick's Law, which helped me see how simplicity in UI can make decisions easier, reducing cognitive load and boosting user confidence. I also made sure every piece of copy was plain and easy to understand on the first read, and designed every interaction to carry the lowest possible cognitive load.

design: clinical accuracy
design: clinical accuracy

Every question was a clinical decision

Every question was a clinical decision

Every question was a clinical decision

The app asks 20 onboarding questions once, then uses those answers to build each patient's daily check-in, including only the questions that apply to their conditions and equipment. Every question was reviewed with clinicians, written in plain 5th-grade language, and revised through both rounds of testing.

The clearest example: a survivor with chronic vertigo was flagged as a false emergency because "have you fainted or felt very dizzy" swept in her everyday baseline. I rescoped it to capture genuine warning signs, passing out, nearly passing out, too dizzy to stand safely, not symptoms a patient already lives with.

design: mid-fi
design: mid-fi

Key screens came first, then everything in between

Key screens came first, then everything in between

Key screens came first, then everything in between

With the design system in place, I aligned with my teammate on three foundational screens: onboarding, the daily check-in and risk assessment, and the dashboard.
From there, I moved into mid-fi to flesh out every screen, transition, and edge case in between, getting the product ready for user testing.

DESIGN TO CODE
DESIGN TO CODE

I shipped the front end in three weeks

I shipped the front end in three weeks

I shipped the front end in three weeks

With three weeks until the MVP, no styled front end existed, and both developers were backend. I designed for handoff from the start: auto-layout, spacing tokens, component states so that the design system could double as the spec. I introduced Figma MCP to get screens to code, wrote one-shot prompts that closed the gap to the design, and ran co-op sessions with my developers to implement them. The MVP went out on deadline, and the pipeline carried every screen after it.

DESIGN TO CODE: PROMPTS
DESIGN TO CODE: PROMPTS

Every prompt was a design spec

Every prompt was a design spec

Every prompt was a design spec

Figma MCP got screens to code fast, but the finishing details didn’t land: the exact spacing, easing, and states that make a design feel right. I fixed each one myself, iterating on my localhost until it matched the design, then distilled the verified fix into a one-shot prompt. In the next day’s co-op session, my developers ran the prompts and confirmed the backend held up. Every one landed on the first pass.

validation
validation

I tested with experts and the people who lived it

I tested with experts and the people who lived it

I tested with experts and the people who lived it

I validated the design in two rounds. First, expert reviews with a UX content expert, a doctor, and a clinical performance nurse, alongside usability testing with sepsis survivors. Each reviewer brought a different lens (content clarity, clinical accuracy, and workflow fit), surfacing the problems the iterations below solve. A second round on the finished hi-fi build, with survivors and clinical nurses, put those solutions to the test.

Before
Before
After
After

"Users didn't know who the app was for or why to trust it." - UX Content Expert

validation: iterations
validation: iterations

The emergency screen went from easy to dismiss to impossible to miss

The emergency screen went from easy to dismiss to impossible to miss

The emergency screen went from easy to dismiss to impossible to miss

The original emergency screen was a dismissible popup in the app's green palette, easy to close and easy to underestimate. I redesigned it as a full-screen red takeover that patients must acknowledge before continuing, followed by a one-tap 911 call from the dashboard. When a survivor triggered it in round 2, they followed the escalation without hesitation.

Before
Before
After
After

Space screens turn one long flow into four breathable sections

Space screens turn one long flow into four breathable sections

Space screens turn one long flow into four breathable sections

The continuous check-in flow drained users, question after question with no sense of progress. I added labeled space screens that introduce each section, giving patients context on what's coming and a mental break between them.

Before
Before
After
After

Info buttons put context one tap away

Info buttons put context one tap away

Info buttons put context one tap away

Some questions felt invasive without a reason, and others asked for unfamiliar measurements, like resting oxygen (SpO₂). I added info buttons that explain why a question matters and how to answer it: help one tap away, without cluttering the screen for patients who don't need it.

Before
Before
After
After

Settings went from one endless scroll to three sub-pages

Settings went from one endless scroll to three sub-pages

Settings went from one endless scroll to three sub-pages

Settings began as one endless scroll, dozens of fields with no way to update one thing quickly. I restructured it into three focused sub-pages, Personal Information, Medical Profile, and My Equipment, grouped so anything a patient needs sits one tap deep instead of buried mid-scroll.

Before
Before
After
After

Every screen adapts from desktop to phone

Every screen adapts from desktop to phone

Every screen adapts from desktop to phone

Patients check in from wherever recovery happens: a phone in bed, a tablet on the couch, a caregiver's desktop. I designed responsive states for every screen, from the dashboard to the emergency overlay, then drove them into production through co-op sessions with our developers, keeping layouts and tap targets consistent so the experience never has to be relearned between devices.

challenges
challenges

Symptom data made HIPAA non-negotiable

Symptom data made HIPAA non-negotiable

Symptom data made HIPAA non-negotiable

Once the app collects symptom data such as fever, chills, and vitals, it's Protected Health Information. Launching publicly required HIPAA compliance, a workstream we ran with lawyers and PeaceHealth's IRB that now continues under their team.

IRB timelines pushed recruiting outside the hospital

IRB timelines pushed recruiting outside the hospital

IRB timelines pushed recruiting outside the hospital

Any study involving patient recruitment through PeaceHealth requires Institutional Review Board (IRB) approval, a process that can take months for studies that handle Protected Health Information. Because this approval window extended beyond the capstone timeline, I couldn't recruit sepsis survivors directly through the hospital. I sourced participants independently through online sepsis survivor communities. The trade-off: a smaller, self-selected sample, but an earlier signal on the design.

Reflection
Reflection

Project Handoff

Project Handoff

Project Handoff

We successfully met the goals our sponsor set and supported the transition with full documentation, a handoff meeting, and an open line for questions down the road. PeaceHealth and Sound Physicians are now carrying it toward clinical use.

Mentorship

Mentorship

Mentorship

This was my first time leading a project end-to-end, and part of it was mentoring one of our designers. After getting them up to speed on our design system and Figma fundamentals, I realized the most useful thing I could do was find what they were naturally good at and shape their part of the project around that strength.

Design to Code

Design to Code

Design to Code

Something I didn’t expect from this project was how much I’d grow on the engineering side. My developers owned the backend. My strength was the design eye: the spacing, sizing, and positioning that make a design feel right. The pipeline put that eye to work in code. I came in as a UX designer and left closer to a UX engineer.

What I Learned

What I Learned

What I Learned

Designing for people recovering from a life-threatening illness changed how I work. The time I spent with survivors taught me to design with real empathy for the person on the other end. Just as important were the people I worked with. Everyone brought different strengths, so we rarely hit gaps. The communication and chemistry made even the hardest obstacles fun. This was the best team I've been a part of.

Let's Get in Touch!

Thanks for stopping by.

Copyright © 2026 Samuel Lim

Let's Get in Touch!

Thanks for stopping by.

Copyright © 2026 Sam

Let's Get in Touch!

Thanks for stopping by.

Copyright © 2026 Samuel Lim