Have you completed your 30 rounds of radiation? If so that was quick. Yes the Navdx is a kit in a box. They take your blood sample and mail it in. My tests have averaged about 2 week turnaround. And I think 95% accuracy is about right. My first reading right before surgery was 180. 2nd reading 3 weeks from surgery 0. 3 months was 0. 6 months was 0 and 9 months was 0. To say I love the trend is an understatement. Thank God. Of course, throat scopes every 3/4 months and PET or CT scan every 3/4 months first year are necessary. I think they go to every 6 months in year two. It is just a tool but a negative reading gives you alot of peace of mind that the cancer is gone and you indeed are well on your way to being back to normal. I hope your eating and salvia production are doing well as some struggle with that post-surgery/radiation. I would say I am about 90% back to normal as of today. God is good.