I know one person in Texas who had to go through an appeals process after getting a DWI as an EMT-I (A-EMT) and was able to get their certification back within the month. Shortly after that they went to paramedic school and were able to get their NRP and EMT-P.
In regards to gaining...
I went all the way to 150 for paramedic even with feeling as if I was doing well through the whole exam. It was a stressful experience but found out within 5 hours that I had passed.
Passed with 150. Had some tough questions between 120-135 and from there are on it seemed pretty smooth sailing as the questions got easier. I know I got the last question right but I am not sure I believe in the last question theory.