Facing your first FDA inspection for in vitro diagnostics can be daunting. This comprehensive guide provides the essential framework for success, covering everything from pre-inspection readiness and building a robust Quality Management System to managing the on-site audit and responding effectively to observations. We break down the key regulations, highlight common pitfalls in design controls and CAPA, and provide actionable strategies to ensure your team is prepared, confident, and compliant. Use this guide to transform regulatory hurdles into opportunities to strengthen your quality culture.