Lab corp testing on sensitive essay (3-70) is skewed majorily.
I had a reading of 20-25 thinking I was fine for over a year half, but still had estrogen like symptoms. I went to quest got 4021 and it was found to be twice as high which symptoms correlated !!
Lab corp essay of 7.6-42 may be the better choice.
I had one person who went to lab corp for 13 years on HRT and was getting 5,14 on the lab corp sensitive test and Dr's could not figure what was going on. I had his dr get the quest 4021x problems solved !! Once we got his estrogen stable a huge improvement in symptoms resulting in over all better blood profiles on blood sugar, lipids and inflammatory markers.