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1.36: Pregnancy and Fetal Function

  • Page ID
    38616
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    1. Fetal lung maturity can be assessed from amniotic fluid because the surfactant is primarily composed of:
      1. protein
      2. cholesterol
      3. glycerol
      4. triglycerides
      5. phosphatidylcholine and other phospholipids

    Use the following key for questions 2 and 3

    1. creatinine
    2. nile blue sulfate staining cells
    3. absorbancy at 450 nm
    4. functional test, such as the fluorescence polarization assay
    5. “shake test”
    1. In diabetic pregnancies, large-for-gestational-age fetuses are not uncommon. Which amniotic fluid test would most accurately predict fetal pulmonary maturity at 38 weeks’ gestation?
    2. Which rapid amniotic fluid test would most accurately predict fetal pulmonary maturity at 38 weeks’ gestation?
    3. Fetal hemolytic disorders (Rh problems) are best diagnosed by the following test of amniotic fluid:
      1. estriol
      2. phospholipids
      3. bilirubin
      4. surface tension
      5. human chorionic gonadotropin
    4. Which of the following tests is useful to predict ancephaly or meningomyelocele?:
      1. serum human placental lactogen
      2. amniotic fluid surface tension
      3. amniotic fluid cortisol levels
      4. amniotic fluid alpha-fetoprotein
      5. amniotic fluid
    5. A sample is received for fetal maturity studies, but the laboratory is not sure if the sample is a proper amniotic fluid specimen; that is one not heavily contaminated with maternal urine. Which of the following analytes can be used to differentiate between urine and amniotic fluids:
      1. creatinine
      2. protein
      3. sodium
      4. bilirubin
      5. alpha-fetoprotein
    6. Which of the following sets of results from amniotic fluid is likely to be associated with fetal immaturity?
      1. L/S = 2.9, PG = negative
      2. L/S = 1.8, PG = positive
      3. L/S = 1.5, PG = negative
      4. L/S = 2.1, PG = positive
      5. L/S = 2.0, PG = negative
    7. The best screening test for neural tube defects is measurement of serum:
      1. placental lactogen
      2. bilirubin
      3. estriol
      4. alpha-fetoprotein
      5. chronic gondatrophin
    8. The primary pathway for removal of amniotic fluid during the third trimester of pregnancy is fetal swallowing.
      1. True
      2. False
    9. At what time period do the following biochemical pathways mature or reach maximal levels? Match the time in column A with the pathway in Column B.
    Column A Column B
    1. 8-9 weeks gestation
    2. Parturition at birth
    3. 4 weeks post-partum
    4. 38 weeks gestation
    5. 16 weeks gestation
    1. fetal hemoglobin production
    2. adult hemoglobin production
    3. high levels of lung surfactant
    4. maternal serum chorionic gonadotropin levels
    5. maternal plasma unconjugated estriol production

     Question 11 - 17

    1. 1,2, and 3 are correct
    2. 1 and 3 are correct
    3. 2 and 4 are correct
    4. only 4 is correct
    5. all are correct
    1. Amniocentesis is performed for which of the following conditions?:
      1. management of Rh incompatibility
      2. identification of fetal maturity
      3. identification of potential genetic disorders
      4. identification of fetal sex
    2. The primary source (s) of amniotic fluid in the third trimester of pregnancy is (are):
      1. skin
      2. lung
      3. intestine
      4. kidney
    3. Serial measurements of maternal serum estriol demonstrate a pattern of slightly decreasing levels of estriol. The most likely clinical condition (s) associated with this pattern is (are):
      1. fetal growth retardation
      2. imminent fetal birth
      3. fetal death
      4. toxemia of pregnancy
    4. Preeclampsia is associated with which of the following clinical symptom(s):
      1. hypertension
      2. edema
      3. proteinuria
      4. glucosuria
    5. The beta chain of human chorionic gonadotrophin (hCG) is closely related to the beta chains of which of the following proteins?
      1. follicle-stimulating hormone (FSH)
      2. thyroid stimulating hormone (TSH)
      3. lututrinizing hormone (LH)
      4. all of the above
      5. none of the above
    6. Premature labor:
      1. Can be prevented by treatment with high-dose MgSO4.
      2. Is a leading cause of perinatal death.
      3. Can be caused by infections and maternal drug use.
      4. A cause of toxemia of pregnancy
    7. Premature labor can be detected by:
      1. Leaking amniotic fluid
      2. Maternal AFP levels
      3. Fetal fibronectin
      4. Low maternal unconjugated estriol levels
    Answer
    1. e (p. 762)
    2. d (p. 772)
    3. e (p. 772)
    4. c (p. 773)
    5. d (p. 768, 775)
    6. a (p. 772)
    7. c (p. 771-772)
    8. d (p. 768)
    9. a (p. 755-756)
    10.  
      1. d (p. 758)
      2. e (p. 759)
      3. b (p. 765)
      4. c (p. 763)
      5. a (p. 765)
    11. a (p. 769)
    12. c (p. 756)
    13. b (p. 757-759, 770)
    14. a (p. 766)
    15. e (p. 757)
    16. a (p. 766)
    17. b (p. 766)

    1.36: Pregnancy and Fetal Function is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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