Explanation:

To display patient information from both Salesforce standard objects and external systems on the patient record page, Health Cloud leverages OmniStudio (formerly Vlocity) components. These tools allow for dynamic, integrated views without custom code.

✅ C. FlexCards
FlexCards are UI components used to display data from Salesforce or external sources.
They are typically embedded on record pages like the Patient 360 view.
Ideal for showing a combined view of internal and external data in a clean format.

✅ D. Integration Procedures
Used to orchestrate calls to external systems, perform logic, and pass data to/from Salesforce.
Integration Procedures work behind the scenes and feed FlexCards or OmniScripts.
Perfect for retrieving external system data in real time.

✅ E. DataRaptors
DataRaptors extract, transform, and load data between Salesforce and UI components like FlexCards.
Used to pull Salesforce data (e.g., from standard or custom objects) for display or updates.
DataRaptors are the preferred tool for handling Salesforce-side data access in OmniStudio.

❌ A. Visualforce Pages
Outdated and less flexible than OmniStudio.
Visualforce does not easily integrate with OmniStudio tools and is not the recommended approach for modern Health Cloud UI.

❌ B. Salesforce Flows
While Flows are great for automation, they are not intended for real-time data display on pages.
Not used to pull or render external system data visually on a record page.