<prompt> Minimum hCG level that a urine pregnancy test can detect is?5 m IU ml10-20 m IU ml20-30 rn IU ml35 m IU ml  <response>: 5 m IU ml REF: Danfohs Obstetrics and Gynecology, 10th Edition page 4, Current OBGYN Chapter 9. Normal Pregnancy Prenatal Care Normal Pregnancy URINE PREGNANCY TEST: Sensitive, early pregnancy test measure changes in levels of hCG. There is less cross-reaction with luteinizing hormone LH, follicle stimulating hormone FSH, and thyrotropin, which all share common a subunit with hCG, when the 3 subunit of hCG is measured. hCG is produced by the syncytiotrophoblast 8 days after feilization and may be detected in the maternal serum after implantation occurs, 8-11 days after conception. hCG levels peak at approximately 10-12 weeks of gestation. Levels gradually decrease in the second and third trimesters and increase slightly after 34 weeks. The half-life of hCG is 1.5 days. After termination of pregnancy levels drop exponentially. Normally, serum and urine hCG levels return to nonpregnant values 5 m UmL 21-24 days after delivery. hCG is measured in milli-international units per milliliter m IUml The detection of greater than 35 m IU of human chorionic gonadotropin hCG in the first morning void has a very high specificity for pregnancy 3 Hcg in m IUm1 Result Under 5 m IUml Negative- Not pregnant Between 5-25 m IUml: Equivocal- Maybe pregnant may not be- Repeat test Over 25 m IUml Positive- Pregnant 