The qualitative detection of human chorionic gonadotropin (hCG) in urine to aid in the early detection of pregnancy.
A first morning urine specimen is preferred since it generally contains the highest concentration of hCG, however, urine specimens collected at any time of day may be used.
Transfer urine to a Urine aliquot transport vial/tube - 10mL (AHL)
Refrigerated (preferred) - 48 hours
Ambient - 24 hours
Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced by the developing placenta shortly after fertilization. In normal pregnancy, hCG can be detected in both urine and serum as early as 7 to 10 days after conception. hCG levels continue to rise very rapidly, frequently exceeding 100 mIU/mL by the first missed menstrual period, and peaking in the 100,000-200,000 mIU/mL range about 10-12 weeks into pregnancy. The appearance of hCG in both the urine and the serum soon after conception, and its subsequent rapid rise in concentration during early gestational growth, make it an excellent marker for the early detection of pregnancy.