Penny OB/GYN Ch.30 Review
Advanced maternal age is considered to be:
>35 years of age
Which protein is not produced by the developing placenta?
Alpha-fetoprotein
The triple screen typically includes:
Alpha-fetoprotein, estriol, and human chorionic gonadotropin
Rounded head shape is referred to as:
Brachycephaly
Placental tissue is obtained with what procedure?
Chorionic villi sampling
The earliest fetal karyotyping technique that can be performed is:
Chorionic villi sampling
The bending of the fifth digit toward the fourth digit is called:
Clinodactyly
The maternal serum screening of a mother with a fetus with trisomy 18 will reveal:
Decreased human chorionic gonadotropin, alpha-fetoprotein, and estriol
A 38-year-old pregnant woman presents to the sonography department for an obstetrical sonogram with abnormal maternal serum screening. Her alpha-fetoprotein and estriol are low, while her human chorionic gonadotropin is elevated. These laboratory findings are most consistent with:
Down syndrome
Brachycephaly is associated most often with which of the following syndromes?
Down syndrome
Widened pelvic angles and duodenal atresia are most consistent with the sonographic markers for:
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
A structural abnormality that results from an abnormal development describes:
Malformation
The term for small eyes is:
Microphthalmia
Fusion of the orbits and holoprosencephaly are associated with:
Patau syndrome
A large space between the first and second toe is termed:
Sandal gap
Webbed fingers or toes are termed:
Syndactyly
A fetus with a karyotype revealing is has 69 chromosomes and sonographic findings of webbed fingers and intrauterine growth restriction most likely has:
Triploidy
A molar pregnancy, omphalocele, and small, low-set ears are found most often with:
Tripoloidy
Cleft lip, hypotelorism, and microphthalmia are all sonographic features of:
Trisomy 13
Cyclopia would most likely be associated with:
Trisomy 13
Sonographically you identify a fetus with fusion of the thalami and a monoventricle. Which chromosomal abnormality would be most likely?
Trisomy 13
Bilateral choroid plexus cysts, micrognathia, and rockerbottom feet are sonographic findings of a 27-week fetus with an omphalocele. These findings are most consistent with:
Trisomy 18
A 22-week gestation fetus with clinodactyly, an echogenic intracardiac focus, and hyperechoic bowel is noted during a screening obstetrical sonogram. These findings are most consistent with:
Trisomy 21
Absent nasal bones and an increased nuchal fold measurement is most consistent with the sonographic markers for:
Trisomy 21
Of the following, which is macroglossia most often associated with?
Trisomy 21
Monosomy X refers to:
Turner syndrome
Nonimmune hydrops and ovarian dysgenesis are found in fetuses affected by:
Turner syndrome
Webbing of the neck and short stature is found in infertile female patients with a history of:
Turner syndrome
