Progestin greater than 20 can rule out ectopic pregnancy?

Progestin is greater than 20 and can not rule out ectopic pregnancy, and progesterone can only be used as a monitoring index of ectopic pregnancy, and can not be used as a diagnostic index. Gynecological B ultrasound examination can be carried out to determine whether ectopic pregnancy, if ectopic pregnancy, timely treatment of curettage surgery.