True statement regarding ectopic pregnancy:: (A) Serum progesterone >25 ng/ml exclude ectopic, (B) p-hCG levels should be >1000 mlU/ml for earliest detection by TVS, (C) p-hCG levels should be <1000 mlU/ml for earliest detection by TVS, (D) Methotrexate is not used for treatment
Answer is A. If the serum beta hcg value is 1500 IU/L and an intrauterine pregnancy is not visualized in a TVS it is likely to be an ectopic .This is the level at which intrauterine gestational sac is seen and is called discriminatory zone (refer pgno:159 sheila 2 nd edition)