A qualitative HCG blood test checks if there is a hormone called human chorionic gonadotropin in your blood. HCG is a hormone produced in the body during pregnancy. HCG is a hormone produced in the body during pregnancy.. Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Handsfield on hcg quantitative vs qualitative: Serum is the part of blood. It is the liquid part left when blood clots and is centrifuged . Many 'blood' tests, including beta HCG are done on serum.. Precap What are Qualitative and Quantitative Pregnancy Tests? A Qualitative pregnancy test only tells you whether hCG is present or not. On the other hand, a Quantitative pregnancy test tells you exactly, quantify, how much hCG is present.. A qualitative HCG blood test checks to see if there is a hormone called human chorionic gonadotropin in your blood. HCG is a hormone normally produced during pregnancy. HCG is a hormone normally produced during pregnancy.. This quantitative pregnancy blood test, also called the Beta hCG blood test, measures the amount of the hormone hCG (Human Chorionic Gonadotropin) in the blood. This hormone is secreted when a fertilised egg becomes implanted in the uterine wall. Present in very small amounts in early conception, the level of hCG increases as your pregnancy develops.. A doctor will consider doing both a quantitative and qualitative beta-hCG blood test to confirm pregnancy and assess the levels of hCG in the blood. Follow up tests are always advisable to exclude a false-positive or false-negative result or possibly identify a miscarriage..