PTEST PREGNANCY TEST kit measures a hormone called human chorionic gonadotropin (hCG) in your urine. However, these tests are qualitative, and the results are either positive or negative for pregnancy. The most sensitive test of pregnancy is best performed by a laboratory scientist , using a sample of your blood, however , PTEST has been proven to have generated a high level of reliable result while using urine . There are 50 strips inside for 50 test using urine