What the hell is quest labs Estradiol, Ultrasen, Lcmsms test? I know it tests estrogen levels but from my research I have read that this test is inaccurate and not as reliable as an E2 test....

my Estradiol, Ultrasen, lcmsms is <2 (< or = 29 pg/ml)

I have no idea what this means or where I am at.... and I personally feel that my E levels are higher than this....