Reference and details below.

The two integration patterns that a consultant should recommend to share patient medication information with an external pharmacy are Platform Event and Apex HTTP Callout. Platform Event allows Bloomington Caregivers to publish events when medication records are updated in Health Cloud, and the external pharmacy can subscribe to those events and receive notifications in near real time. Apex HTTP Callout allows the external pharmacy to send an HTTP request to Health Cloud with the medication interaction information, and Health Cloud can process the response and display it to the users.

According to the Health Cloud Implementation Guide, two statements that are true about Care Teams are:
Care Team Members are optional on a Care Plan. This statement is true because a care plan can be created without any care team members assigned to it. However, adding care team members can help with collaboration and coordination of care.
A Care Plan must have a Coordinator as a member of the Care Team before a Care Plan Template can be applied. This statement is true because a coordinator is required to manage the tasks and goals of a care plan template. A coordinator can be either an internal or external user who has access to Health Cloud. If the Problem and Goal objects use Private Sharing, Care Team Membership provides access to these objects is not a true statement, as care team membership does not grant access to objects that use private sharing. Communities must be enabled before External Care Team members can be added is not a true statement, as external care team members can be added without enabling communities.