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