On practical terms we can say that prenatal diagnosis (PND) only start
ed in Portugal in 1984 after the Abortion Act was approved by Parliame
nt. Since then the demand for PND has been increasing, but we realise
that the coverage of high-risk pregnancies as well as screening for fe
tal abnormalities in the general population are below the desirable le
vels. Among the factors that contribute to this we can mention the bad
planning in some services, the low standard of ultrasound scans in th
e low-risk pregnancies, the small number of public cytogenetics labora
tories performing fetal karyotyping, the scarcity of genetic counsello
rs and last but not least the inadequate limit of 16 weeks for termina
tion of pregnancies in case of fetal malformation.