Chapter 28: The Fetal Gastrointestinal System Flashcards

1
Q

When do the fetal kidneys begin to produce urine?

A

9 weeks

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2
Q

What lobe of the liver is typically the largest in the fetus?

A

left

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3
Q

Which of the following could result from a choledochal cyst?
a. Duodenal atresia
b. portal hypertension
c. Hirschsprung disease
d. Cystic fibrosis

A

b

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4
Q

Fetal bowel loop diameter is abnormal when it exceeds:

A

7mm

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5
Q

Echogenic bowel is associated with all of the following except:
a. fetal demise
b. cytomegalovirus
c. growth restriction
d. Beckwith-Wiedemann syndrome

A

d

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6
Q

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

A

d

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7
Q

Normally, physiologic bowel herniation resolves by:

A

12 weeks

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8
Q

Which of the following is most often associated with duodenal atresia?
a. Trisomy 21
b. Trisomy 18
c. Trisomy 13
d. Triploidy

A

a

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9
Q

Hepatomegaly would be seen in conjunction with:
a. Down syndrome
b. Edwards syndrome
c. Beckwith-Wiedemann syndrome
d. Hischsprung disease

A

c

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10
Q

Pentalogy of Cantrell includes all of the following findings except:
a. cardiovascular malformations
b. diaphragmatic malformations
c. omphalocele
d. radial ray defect

A

d

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11
Q

An excessive amount of amniotic fluid is termed:

A

polyhydramnios

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12
Q

The most common abnormality of the fetal liver is;

A

hepatomegaly

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13
Q

Congenital maldevelopment of the proximal portion of the small intestine is termed:

A

duodenal atresia

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14
Q

A functional bowel disorder within the fetus that is caused by the absence of intestinal nerves is found in:

A

Hischsprung disease

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15
Q

Which of the following is associated with echogenic bowel?
a. fetal anemia
b. cystic fibrosis
c. radial ray syndrome
d. portal hypertension

A

b

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16
Q

What chromosomal anomaly is associated with echogenic bowel>

A

Trisomy 21

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17
Q

The herniation of the bowel into the base of the umbilical cord before 12 weeks is termed:

A

phyiologic herniation

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18
Q

All of the following are associated with omphalocele except:
a. trisomy 18
b. pentalogy of Cantrell
c. intrauterine growth restriction
d. Hirschsprung disease

A

d

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19
Q

The fetal stomach should be visualized by:

A

14 weeks

20
Q

All of the following are associated with esophageal atresia except:
a. Down syndrome
b. VACTERL association
c. Edwards syndrome
d. oligohydramnios

A

d

21
Q

An abnormal connection between the esophagus and trachea is termed:

A

tracheoesophageal fistula

22
Q

In what location does gastroschisis occur more often?

A

right lateral of cord insertion

23
Q

The congenital absence of part of the esophagus is termed:

A

esophageal atresia

24
Q

The “double bubble” sign is indicative of:

A

duodenal atresia

25
Q

All of the following are associated with gastroschisis except:
a. normal cord insertion
b. multiple chromosomal abnormalities
c. elevated MSAFP
d. periumbilical mass

A

b

26
Q

Which of the following lab values would be significant in the detection of an abdominal wall defect?
a. MSAFP
b. HcG
c. maternal serum amylase
d. estradiol

A

a

27
Q

What is an inherited disorder in which mucous-secreting organs such as the lungs, pancreas, and other digestive organs produce thick and sticky secretions instead of normal secretions?

A

cystic fibrosis

28
Q

What organ(s) produces amniotic fluid after 12 weeks?

A

fetal kidneys

29
Q

An omphalocele is associated with all of the following except:
a. pentalogy of Cantrell
b. trisomy 18
c. Patau syndrome
d. meconium aspiration syndrome

A

d

30
Q

Duodenal atresia and esophageal atresia are associated with:

A

polyhydramnios

31
Q

The fetal gut develops at the end of the fifth menstrual week and can be divided into all of the following except:
a. midgut
b. foregut
c. central gut
d. hindgut

A

c

32
Q

Intrauterine growth restriction is defined as:
a. a small for dates fetus
b. a fetus that falls below the 10th percentile for gestational age
c. a fetus that is immunocompromised and has decreased umbilical Doppler ratios for gestational age
d. a fetus that falls below the fifth percentile for gestational age

A

b

33
Q

Which of the following best describes a choledochal cyst?
a. it is the cystic dilatation of the common bile duct
b. it is the herniation of the abdominal contents into the umbilical cord
c. it is the congenital absence of the cystic duct
d. it is the inflammation of the biliary tree caused by extrinsic obstruction

A

a

34
Q

Fetal stool is termed:

A

meconium

35
Q

All of the following are associated with omphalocele except:
a. normal cord insertion
b. multiple chromosomal abnormalities
c. elevated MSAFP
d. periumbilical mass

A

a

36
Q

An omphalocele may contain:
a. fetal liver
b. ascites
c. fetal colon
d. all of the above

A

d

37
Q

The congenital maldevelopment of the rectum and absence of anal opening is termed:

A

anorectal atresia

38
Q

All of the following are associated with duodenal atresia except:
a. trisomy 21
b. esophageal atresia
c. VACTERL association
d. Turner syndrome

A

d

39
Q

Which of the following would be least likely associated with an elevated MSAFP?
a. pentalogy of Cantrell
b. anorectal atresia
c. gastroschisis
d. omphalocele

A

b

40
Q

Which of the following is considered to be the most common type of colonic atresia?
a. duodenal atresia
b. jejunal atresia
c. anorectal atresia
d. intussusception

A

c

41
Q

Fetal meconium typically consists of all of the following except:
a. skin
b. hair
c. bile
d. blood

A

d

42
Q

Which of the following would be most likely associated with an excessive amount of amniotic fluid?
a. duodenal atresia
b. hepatomegaly
c. bilateral renal agenesis
d. physiological bowel herniation

A

a

43
Q

The majority of amniotic fluid is composed of:

A

fetal urine

44
Q

All of the following are sonographic findings of esophageal atresia except:
a. absent stomach
b. polyhydramnios
c. macrosomia
d. intrauterine growth restriction

A

c

45
Q
A