All medical tests carry a false negative rate but a very low one. It is 1% to 4 % risk of a false negative. Testing too soon is the biggest way to get a false negative. Hope that helps.
yes i was told i had it at 20 by gf treated with antibiotics but no test from er, im 38 still have burring every day no answer every test in the book many drs over many year many antibiotics, only thing i can say i broke out with ngu at end of no test 30 days first treatment the female dr stuck a smoking hot metal loop dna ghonnera culture in me scope showed nothing
The NAAT is very sensitive, but if you are concerned, just go get another test done.
Have you followed up on the high glucose?