Depends on where the test was sent. I believe there is two. Quest is one, can't think of the other name right off hand. I believe the Quest test number to be 150 and below.
So the Quest NRR (normal reference range) last time I checked was somewhere in the 160s down as normal. I can't remember if it was less than 167.2 or less than 162.7 but the NRR will be listed on the lab report