Rothman Index Mobile App

Real time patient acuity monitoring for clinical teams on the go

Role: Senior UI/UX Engineer

Company:PeraHealth

Timeline:2019 ‐ 2022

Adobe XDPrototypesAngularWCAG 2.1

The Problem

Clinical staff needed real time patient acuity data at the bedside, but the existing desktop only Rothman Index dashboard was impractical for nurses moving between rooms. Delayed access to deterioration alerts put patient safety at risk.

Constraints

FDA 508 clearance requirements — strict regulatory review process
WCAG 2.1 AA accessibility compliance for clinical environments and clearance approval.
Must work on both iOS and Android with intermittent hospital Wi-Fi
Integration with existing HL7/FHIR data pipelines
Nurses have seconds, not minutes, to interpret patient status

Research

Methods

Reviewed charge nurses and hospitalists reports and feedback on alert fatigue
Analyzed usage logs from existing desktop dashboard
Worked with former rapid response team nurses to record clinical patient workflows to streamline application visuals

Key Insights

Nurses check patient status at glances between other tasks
Color coded severity is the fastest signal for reporting not just numbers alone
Alert fatigue from hospital systems has caused real alerts to be ignored
Charge nurses need unit level views; bedside nurses need patient level views, and rapid response nurse need full hospital views.

Process

User Flows

Task flow: nurse receives alert → opens app → triages patient → records actions taken

Information architecture: unit view → patient list → patient detail — Information architecture: hospital view → unitview → patient list → patient detail

Wireframes

Rothman Index mobile patient list wireframe with color-coded acuity bands — Lo-fi reworked wireframe: patient list with color-coded acuity bands

Rothman Index mobile patient detail wireframe with a patient trend graph — Lo-fi wireframe: patient details with mirroring desktop application information

Iterations

Final Design

Key Screens

Rothman Index mobile app final unit overview showing real-time acuity scores — Final: unit overview with real-time acuity scores

Rothman Index mobile app final patient detail screen with a 72-hour trend, notes, and history — Final: patient detail with timeline trend, patient details, patient notes, and patient history

Rothman Index mobile app final intervention screen for one-tap triage and action recording — Final: single tap triage, categorization and defined actionable recording in app

Design System

Built on a shared design system with the desktop dashboard. Color tokens, typography scale, and component library maintained in AdobeXD with dev-ready specs I used to help engineering achieve perfect replication in code base.

Collaboration

Product Manager — prioritization, FDA submission coordination

Clinical User Testing — validation of alert thresholds

iOS & Android engineers — feasibility reviews, handoff

QA team — accessibility audit, device matrix testing

Delivered annotated and developed AdobeXD specs with interaction notes, component documentation, and a prototype for FDA reviewer walkthroughs. Wireframe full workflows for FDA testing approval.

Outcome

FDA 508 clearance achieved on first submission
Adopted across 10+ hospital units within 6 months of launch
Improved alert response workflow based on usability feedback
WCAG 2.1 AA compliant across all screens

"The mobile app gave our nurses the situational awareness they needed without adding to their cognitive burden."

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