Lab Links-Intelligent Integration For Equitable Diagnostic Access

Abstract: The process of medical diagnostics in developing regions remains fragmented, often requiring patients to manually locate laboratories, compare costs, and retrieve reports across multiple platforms. This paper presents Lab Link, an intelligent full-stack web application designed to simplify and digitize the end-to-end process of medical lab testing. The system allows users to securely create accounts, search for diagnostic tests, and discover nearby laboratories based on location and test availability. Each listed laboratory displays detailed information including test pricing, facilities, and user ratings, enabling data-driven selection. The application integrates Next.js for responsive client- side rendering, Cloudflare Workers for scalable backend computation, and PostgreSQL with Prisma ORM for optimized data management. JWT-based cookie authentication ensures secure and persistent sessions, while Zod validation enforces type-safe operations throughout the system. Test results are stored and retrieved in encrypted PDF format, preventing data loss and ensuring patient privacy.