I feel for ya, I haven't touched Hospital/Medical systems, but I work in the financial network business...

Security is paramount, reliablity/redundancy/diversity is critical to them, and Latency is also their bread and butter (if they're a HFT)

if the system is that critical, it should have redundancy and monitoring built in, so you don't start a surgery without a backup in place & known to be functioning... a backup is only good if you KNOW it's working- so you have to monitor it just as much as the primary path.