How many progesterone levels can rule out ectopic pregnancy?

When progesterone value reaches 25ng/mL or more, the possibility of ectopic pregnancy can be basically ruled out, and only 1.5% of the probability is considered to be ectopic pregnancy. In addition, ectopic pregnancy can be diagnosed by abdominal B ultrasound and blood hcg value, and early diagnosis and early treatment of ectopic pregnancy can be performed.