Preg Tell Pregnancy HCG Test is a rapid one-step pregnancy test that uses colloidal gold technology to detect pregnancy hormones with over 99% accuracy. This midstream test provides quick and reliable results for early pregnancy detection. The test utilizes colloidal gold technology for detecting human chorionic gonadotropin (hCG) hormone in urine. As a personal medical diagnostic device, the test comes with detailed instructions for proper use and result interpretation. Results should be read within the specified timeframe for accuracy.