Chapter 28: The Fetal Gastrointestinal System Flashcards
When do the fetal kidneys begin to produce urine?
9 weeks
What lobe of the liver is typically the largest in the fetus?
left
Which of the following could result from a choledochal cyst?
a. Duodenal atresia
b. portal hypertension
c. Hirschsprung disease
d. Cystic fibrosis
b
Fetal bowel loop diameter is abnormal when it exceeds:
7mm
Echogenic bowel is associated with all of the following except:
a. fetal demise
b. cytomegalovirus
c. growth restriction
d. Beckwith-Wiedemann syndrome
d
The dilated fetal rectum would likely be a sonographic feature of which of the following?
a. Anorectal atresia
b. Rectal carcinoma
c. cystic fibrosis
d. gastroschisis
d
Normally, physiologic bowel herniation resolves by:
12 weeks
Which of the following is most often associated with duodenal atresia?
a. Trisomy 21
b. Trisomy 18
c. Trisomy 13
d. Triploidy
a
Hepatomegaly would be seen in conjunction with:
a. Down syndrome
b. Edwards syndrome
c. Beckwith-Wiedemann syndrome
d. Hischsprung disease
c
Pentalogy of Cantrell includes all of the following findings except:
a. cardiovascular malformations
b. diaphragmatic malformations
c. omphalocele
d. radial ray defect
d
An excessive amount of amniotic fluid is termed:
polyhydramnios
The most common abnormality of the fetal liver is;
hepatomegaly
Congenital maldevelopment of the proximal portion of the small intestine is termed:
duodenal atresia
A functional bowel disorder within the fetus that is caused by the absence of intestinal nerves is found in:
Hischsprung disease
Which of the following is associated with echogenic bowel?
a. fetal anemia
b. cystic fibrosis
c. radial ray syndrome
d. portal hypertension
b
What chromosomal anomaly is associated with echogenic bowel>
Trisomy 21
The herniation of the bowel into the base of the umbilical cord before 12 weeks is termed:
phyiologic herniation
All of the following are associated with omphalocele except:
a. trisomy 18
b. pentalogy of Cantrell
c. intrauterine growth restriction
d. Hirschsprung disease
d