You are seeing a pregnant woman for a morphological ultrasound at 22 weeks of amenorrhea. his couple has no family history. fetal growth is normal. she benefited from a combined screening in the first trimester with a risk of Down syndrome calculated at 1/10,000. the only particularity is fetal intestinal hyperechogenicity. what is(are) the correct proposition(s):
This is a warning sign of cystic fibrosis.
This is a warning sign of a viral infection.
This sign is frequently encountered in fetuses heterozygous for a severe mutation in the cftr gene.
We propose as a priority a search for heterozygosity in both parents
Priority is given to amniocentesis to look for mutations in the cftr gene in the fetus.