@mike marshell,
If the nurse practitioner is hard to understand, you need to speak with the doctor about that.
Don't consent to surgery and other invasive procedures without understanding WTF is going on, and
from the people doing the surgery.
If they blow you off or tell you to get over it or are otherwise ridiculous when you ask these sorts of reasonable questions, then get a second opinion.
This is a job for your medical team, and not the Internet. But the good news is that, even if you are very sick, you are still a consumer of medical services and you can vote with your wallet (and the insurance company's wallet, for that matter) and go elsewhere for your care.
I wish you good health - and a responsive medical team, because FFS,
at the barest minimum, you should be told whether you have cancer and why someone thinks you need to have a knife poked into you. If they are not adequately explaining this to you, then they are insensitive and falling down on the job.