Hi Pat,
I'm not that familiar with hospital needs, though I would suggest that a hospital would now need:
1. 100Mbps symmetric connection to ISP
2. layer 3 gigabit switches switches at every department with 10 Gigabit fibre back to the central router.
3. Possible routers at departments to segment areas within the Department
4. firewall and DMZ between hospital and ISP
5. secure VPN access to certain Departments
6. wireless in some areas for patients that would be secure and isolated from other areas of the Department
and so on, hopefully this will help you start.
regards, Mark Gregory