Search the internet for a free or pay "proxy server"It allows you to access web sites while giving the site a web address in another location you could live in god knows where, Missisipi in the good ol USA but to the web sit it would apear to them you are located in Another country alltogether.Check it out for yourself.
By using a technique called Arp Cache Poisoning or IP Spoofing, you can hide your IP in home or local network.Basically what is involved is generating an Arp Reply that has fake IP info in it.This would mean a network admin could think the traffic he is seeing is coming from a particular machine when it is not.There are many good articles on how it works but most do assume a good working knowledge of TCP/IP
Proxy servers like Tor will hide your IP, but it is very unlikely that the professor can see the IP of which it is submitted, and even if they can they more then likely won't be able to track where it is coming from. If they ask her why her IP is so far away, tell her to say she was using tor a proxy server.
If you had no blood pressure you would be dead.The machine is clearly wrong and needs servicing (you should let Walmart know as there are people who use it to monitor their pressure and sadly rely on those machines.)If you have blood pressure issues and needs to keep them monitored, you should NOT rely on the machines readings.