What affects accuracy?
The variables that affect accuracy of the test results are the use of first morning urine (at least 2.5 hours from last void), consuming excessive amounts of liquid within three hours of performing the test, shaking the test versus swirling, not disturbing the test during the 10 minute wait period, having unprotected sex within 48 hours prior to taking the test. Also, pregnant women with Polycystic Ovarian Syndrome are most likely to receive a BOY result so the test is not able to accurately predict the proper gender. Women taking Progesterone are recommended not to take the test while on Progesterone unless the test is taken after 10 days from last dose.
