chromosomal abnormalities
advance maternal age is considered to be
35 and over
the triple screen typically includes
alpha fetoprotein estriol hCG
rounded head shape is referred to as
brachycephaly
the maternal serum screening of a mother with a fetus with trisomy 18 will reveal
decreased hcg alpha fetoprotein estriol
widened pelvic angles and duodenal atresia are most consistent with the sonographic markers for
down syndrome
webbed fingers or toes are termed
syndactyly
sonographically you identify a fetus with fusion of the thalami and a monoventricle. which chromosomal abnormality would be most liekly
trisomy 13
what is macroglossia most often associated with
trisomy 21
Webbing of the neck and short stature is found in infertile female patients with a history of
turner syndrome
the earliest invasive fetal karyotyping technique that can be performed is
CVS
echogenic small bowel is most often associated with
down syndrome
a molar pregnancy omphalocele and small low set ears are found most often with
triploidy
another name for Patau syndrome is
trisomy 13
bilateral choroid plexus cysts micrognathia and rockerbottom feet are sonographic findings of a 27 wk fetus w an omphalocele. these findings are most consistent with
trisomy 18
a 22 wk fetus with clinodactyly and echogenic intracardiac focus and hyperechoic bowel is noted during a screening obstetric sonogram. these findings are most consistent with
trisomy 21
which of the following is a sex chromosome anomally
45/ x / turner syndrome
normal diploid cells have
46 chromosomes
with what procedure is placental tissue obtained
CVS chorionic villi sampling
which protein is not produced by the developing placenta
alpha fetoprotein
what are the fingerlike projections of gestational tissue that attach to the decidualized endometrium
chorionic villi
the bending of the fifth digit towards the fourth digit is called
clinodactyly
pelvocaliectasis refers to
dilation of the renal pelvis and calices
a 38 yr old pregnant female presents to the sonography dept for an ob sonogram with abnl maternal serum screening. her alpha fetoprotein and estriol are low whereas her hCG is elevated. these lab findings are most consistent with
down syndrome
what is another name for the most common chromosomal abnormality
down syndrome
with which of the following syndromes is brachycephaly associated most often
down syndrome
a strawberry shaped skull is associated with
edwards syndrome
which of the following laboratory findings would not be consistent with trisomy 21 high afp low estriol high hcg low papp-a
high afp
which of the following is not consistent with the diagnosis of nonimmune hydrops
hypoplastic mandible
which of the following is a sex chromosome anomaly associated with hypogonadism and subnormal intelligence in males
klinefelter syndrome
a structural abnormality that results from an abnl development describes
malformation
the term for small eyes is
micropthalmia
Fusion of the orbits and holoprosencephaly are associated with:
patau syndrome
a large space between the first and second toes is termed
sandal gap
a fetus with a karyotype revealing it has 69 chromosomes and sonographic findings of webbed fingers and intrauterine growth restriction most likely has
triploidy
theca lutein cysts would most likely be linked with a molar pregnancy and
triploidy
Cleft lip, hypotelorism, and microphthalmia are all sonographic features of
trisomy 13
cyclopia would most likely be associated with
trisomy 13
absent nasal bones and an increased nuchal fold measurement are most consistent with the sonographic markers for
trisomy 21
monosomy x refers to
turner syndrome
nonimmune hydrops and ovarian dysgenesis are found in fetuses affected by
turner syndrome
