Qualitative tests (yes/no or positive/negative results) look for the presence of the beta subunit of human chorionic gonadotropin (hCG) in blood or urine. For a qualitative test the thresholds for a positive test are generally determined by an hCG cut-off where at least 95% of pregnant women would get a positive result on the day of their first missed period.Qualitative urine pregnancy tests vary in sensitivity. High-sensitivity tests are more common and typically detect hCG levels between 20-50 milli-international units/mL (mIU/mL). Low-sensitivity tests detect hCG levels between 1500-2000 mIU/ml and have unique clinical applications, including confirmation of medication abortion success.[13 Qualitative urine tests available for home use are typically designed as lateral flow tests.