I had that test done last year and it was easy and painless. You follow their instructions leading up to it and then all I had to do when I got to my test was eat a radioactive egg. Diagnostic tests like these are good to do because they give your doctors productive information that can rule out or lean towards different things that they had no way to know for sure without having the test done.
Right Temporal Lobectomy 4/5/12
Laparoscopic Nissen Fundoplication 12/17/13
Diagnosed with GERD, Eosinophilic Esophagitis, and Epilepsy.
Studying biomedical engineering to research a better fix to at least one of them.