Pregnancy tests can be performed on both urine and blood. In the case of pregnancy tests through a blood sample, they offer greater sensitivity, since it is possible to detect a lower amount of beta hCG hormone.
In addition, these tests provide a quantitative result, i.e. they report the exact amount of beta hCG hormone in the blood and do not only indicate positive or negative. The longer the time of pregnancy, the more beta hCG hormone will be in the blood.
Read the full article on: Can pregnancy tests fail? False positives and negatives ( 51).
By Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Rut Gómez de Segura M.D. (gynecologist), Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist) and Cristina Algarra Goosman B.Sc., M.Sc. (psychologist).
Last Update: 10/03/2024
