
Pregnancy tests detect the presence of human chorionic gonadotropin (hCG) in urine samples. Shortly after conception, hCG is secreted by a developing placenta. Accurate detection of hCG in a pregnant woman can occur as early as 6 days after conception once the level of hCG has reached 5-50 mIU/mL. The initials mIU/mL stands for milli [...]






