Human chorionic gonadotropin (hCG), a glycoprotein hormone secreted by viable placental tissue during pregnancy, is excreted in urine approximately 20 days after the last menstrual period. hCG levels rise rapidly, reaching peak levels after 60-80 days. The appearance of hCG in urine soon after conception and its rapid rise in concentration makes it an ideal marker for the early detection and confirmation of pregnancy. However, elevated hCG levels are frequently associated with trophoblastic and non-trophoblastic neoplasms and hence these conditions should be considered before a diagnosis of pregnancy can be made.

Urine hCG concentration in pregnant women rises very rapidly after implantation, reaching a peak concentration in excess of 200 mIU/mL about 2-3 months after the last menstrual period. The Rapid Response™ Pregnancy Test Cassette has a sensitivity of 20 mIU/mL. Reportedly, a level of 20 mIU/mL or more, is present 7-10 days after conception or 4-5 days prior to the first missed menses.

The Rapid Responsee™ Pregnancy Test Cassette has an accuracy of >99.9%.*

*Clinical study value from product insert.

Please refer to the product insert for more details.

The BTNX Rapid Response Tests undergo regular evaluation using proficiency samples from CAP (College of American Pathologists).