OB 52, 53 Study guide

Question 1

1. Caudal regression syndrome, found in patients with what?

Answer 1

Diabetes

Question 2

2. What term defines the appearance of overlapping skull bones indicate fetal death?

Answer 2

spaldings sign

Question 3

3. What would fetal hydrops appear like under ultrasound, sonographic findings?

Answer 3

scalp edema, plueral effusion, percardial effusion, ascites, polyhydraminos, and thickened placenta

Question 4

4. If hydrops is cause by tachycardia, what is the fetal heart rate?

Answer 4

over 170 beats per minute

200-240 BPM

Question 5

5. If a pregnant woman has a baby, patient of size, what increase incidence is there?

Answer 5

Neural tube defects

Question 6

6. What is caudal regression syndrome?

Answer 6

Lack of development of the caudal spine and cord that may occur in the fetus of a diabetic mother

Question 7

7. Skeletal and central nervous system anomalies in infants of diabetes mother including all of the following?

Answer 7

neural tube defects
anencephaly
caudal regression syndrome

Question 8

8. When is it considered premature labor?

Answer 8

Onset of labor before 37 weeks

Question 9

9. Monochorionic twins, which will develop without a heart or upper body?

Answer 9

Acardica twin

Question 10

10. Which one of the following statements about twin to twin transfusion is true?

Answer 10

the arterial blood of the one twin is pumped into the venous system of the other twin

Question 11

11. What is poly-oli sequence?

Answer 11

Poly in one of the twins sac and oligo (small twin) in the other twins sac

Question 12

12. What is another name for poly-oli sequence?

Answer 12

stuck-twin syndrome

Question 13

13. Development of conjoined twins occurs how many days after conception?

Answer 13

13 days

Question 14

14. Stuck twin syndrome is usually observed in what weeks?

Answer 14

16-26 weeks

Question 15

15. Dia-dia, demonstrates what sonographic findings?

Answer 15

two gestational sac and two placentas

Question 16

16. Which one of the following is demonstration of one fertilized egg occurs 4-8 days after fertilization?

Answer 16

one chorion and two amnions

Question 17

17. Predictors of discordant in the growth of twins?

Answer 17

a difference in fetal weight greater than 20%
a difference in abdominal circumference of 20 mm or greater
a difference in femur length of 5 mm or greater

Question 18

18. Most frequency causes of nonimmune hydrops?

Answer 18

Cardiovascular lesions

Question 19

19. What are the advantages of chorionic villa samplings?

Answer 19

it is preformed in the first trimester
the results on available in 1 week
early result allow for more options for the parents

Question 20

20. Cordocentesis is more commonly used for what procedure?

Answer 20

chromosomes are analyzed

guidance for transfusion to treat isoimuniztion

Question 21

21. Amniocentesis may be used for all the following except?

Answer 21

prediction of cardiac anomalies

Question 22

22. Why do we perform amniocentisis?

Answer 22

to relieve polyhydraminos, to predict Rh isoimmunization, to document fetal lung maturity, detect chromosomal abnormality or biochemical disorder

Question 23

23. Twins that arise from two separately fertilized ova are what type of twins?

Answer 23

dizygotic

Question 24

24. Sonographic findings that suggest chromosomal anomalies include?

Answer 24

hand clenching
thickened nuchal fold
omphalocele

Question 25

25. AFP is found in all of the following except?

Answer 25

Brain

Question 26

26. High levels of AFP indicate what?

Answer 26

anencephaly open spina bifida gastroschisis

Question 27

27. Quad screen evaluates all except?

Answer 27

Evaluates: AFP, hcG, unconjugated estriol, dimeric inhibin *not fetal lung maturity*

Question 28

28. Abnormality in a number of chromosomes?

Answer 28

Aneuploidy

Question 29

29. Early noninvasive means of assess the means of aneuploidy?

Answer 29

Nucheal Translucency

Question 30

30. Following sono findings of thickening nuchal, shortened femurs, cardiac anomalies, hydro, what do we look for?

Answer 30

trisomy 21

Question 31

31. Sonographic findings of cranial anomalies, choroid plexus cyst, facial abnormalities, and rocker bottom feet?

Answer 31

trisomy 18

Question 32

32. Holoproscencephaly and proboscis are find in what type of fetus?

Answer 32

trisomy 13

Question 33

33. Secondary to pregnancy include hypertension, coma, seizure, 2nd and 3rd trimester represent what?

Answer 33

eclampsia

Question 34

34. Large cystic hygroma, hydrops, coartation (arch/ascending, split, b/c of trauma) of the aorta, may be seen in a fetus with what condition?

Answer 34

Turners syndrome

Question 35

35. Pregnancy associated with PAP A levels, what do they do?

Answer 35

increase through out pregnancy

Question 36

36. AFP produced early in gestation by what structure?

Answer 36

Yolk sac

Question 37

37. Common reason for an elevated MSAFP is what?

Answer 37

incorrect dates

Question 38

38. Most common anepolidy condition is what?

Answer 38

Downs syndrome

Question 39

39. Optimal collect sight in amnio includes all except? (Parameters)

Answer 39

away from the fetus away from the umbilical cord away from the central portion of the placenta

Question 40

40. MSAFP levels increase with advanced maternal age and peak at what gestational age?

Answer 40

15-18 weeks

Question 41

41. Free Beta HCG can be access in 1st trim to evaluate what condition?

Answer 41

down syndrome

Question 42

42. After amnio, sonographer should document what?

Answer 42

fetal cardiac activity

Question 43

43. Continuous monitor after amnio, what can it cause?

Answer 43

Oligo

Question 44

44. Fetal death after reach certain growth can’t be reabsorbed is called?

Answer 44

Fetus papyraceus

Question 45

45. Low AFP levels have been found in this condition? One more common than other

Answer 45

fetus younger than expected

Question 46

46. What is the diagram of the chromosomes called?

Answer 46

Karaotyping

Question 47

47. Abnormal NT increase fetal risk for all except?

Answer 47

``` Is a risk for: trisomies 13, 18, & 21 & structural defects such as: cardiac diaphragmatic renal ABD wall (MW pg 1198) ```

Question 48

48. Which one is not associated with Turners?

Answer 48

Taller than average stature????? ``` Is associated: cystic hygroma heart defects hydrops renal anomalies ```

Question 49

49. Which is included in 1st trim maternal serum screening?

Answer 49

a NT measurement

Question 50

50. Conjoined twins. 5 question! 5 most common types

Answer 50

``` joined at thorax thoracopagus joined at anterior wall omphalopagus joined at cranium craniopagus joined at ischial region pygopagus joined at buttock region ischiopagus ```