HealthTech Wearable Integration Platform — NHS Remote Monitoring

Wearable API Integration: Fitbit API, Apple HealthKit (via iOS app), Withings API, and Garmin Connect API for patient-consented data collection. OAuth 2.0 per patient per device — patients can revoke at any time. Data normalisation: each device uses different units and sampling rates — normalised to FHIR R4 Observation resources. Clinical Alert Algorithm: Rule-based alert engine: weight gain above 2kg in 24 hours (heart failure exacerbation signal), systolic BP above 180 or below 90 mmHg, heart rate above 100 at rest for 3 consecutive readings. Alert routing: clinical nurse specialist dashboard (Amber alerts), GP/hospital escalation (Red alerts). Alert audit trail for clinical governance. NHS FHIR R4 Integration: Patient identity via NHS Spine PDS. Observation resources written to patient's care record (GP Connect Write — where available). NHS Login for patient authentication (P5). FHIR R4 UK Core Observation profiles for all vital sign data. NHS e-RS integration for clinical escalation referrals. UK GDPR Article 9 and DCB0129: DPIA for special category health data from wearables. Explicit consent (not legitimate interest) as lawful basis for processing wearable health data. DCB0129: Clinical Risk Management Plan, Hazard Log (highest hazard: false negative — missing a deteriorating patient), and Clinical Safety Case Report signed by CSO before go-live.