A Client Has a Point-Of-Service Health Care Plan

A client has a point-of-service health care plan.Why would the community/public health nurse need to consult this client's physician?

A) The physician is the budget officer,who makes decisions about the cost of care.
B) The physician is a collaborator,who is the leader of the health care team.
C) The physician is the expert medical diagnostician,who decides on interventions.
D) The physician is the primary care gatekeeper,who determines appropriate referrals.