Investigations in Pregnancy MCQ Quiz | Obstetrics

1. First-trimester screening for aneuploidy (Double test) measures which two maternal serum markers?

2. When is the optimal time to perform an anomaly scan (TIFFA/Level II scan)?

3. The ‘triple test’ for aneuploidy screening, performed in the second trimester, includes which markers?

4. A Non-Stress Test (NST) is considered ‘reactive’ if it shows:

5. Chorionic Villus Sampling (CVS) is typically performed at what gestational age?

6. What is the primary purpose of a Doppler ultrasound of the umbilical artery in the third trimester?

7. A 75g Oral Glucose Tolerance Test (OGTT) is performed to screen for what condition in pregnancy?

8. Nuchal Translucency (NT) measurement via ultrasound is a key component of which screening test?

9. Which investigation is considered the gold standard for diagnosing fetal chromosomal abnormalities?

10. In an Rh-negative mother without sensitization, when is Anti-D immunoglobulin typically administered prophylactically?

11. A Biophysical Profile (BPP) score of 4/10 indicates what?

12. The Quadruple test adds which marker to the Triple test for improved Down syndrome screening?

13. Non-invasive prenatal testing (NIPT) analyzes what from the maternal blood?

14. Which of the following is a routine investigation in the first antenatal visit for all pregnant women?

15. Amniocentesis for genetic diagnosis is generally performed between which weeks of gestation?

16. Elevated maternal serum alpha-fetoprotein (MSAFP) is most strongly associated with which fetal anomaly?

17. A ‘dating scan’ in the first trimester is most accurate for determining the estimated date of delivery (EDD) based on which measurement?

18. In a patient with suspected pre-eclampsia, which of the following laboratory findings would be most indicative?

19. A microscopic examination of vaginal fluid showing a ‘ferning’ pattern confirms what?

20. A contraction stress test (CST) is considered positive (abnormal) if:

21. What is the primary risk associated with invasive diagnostic procedures like amniocentesis and CVS?

22. A fetal fibronectin (fFN) test performed on cervicovaginal secretions is used to predict the risk of:

23. In universal screening for Group B Streptococcus (GBS) at 36-38 weeks, where is the swab sample collected from?

24. Low levels of Pregnancy-Associated Plasma Protein-A (PAPP-A) in the first trimester are associated with an increased risk of:

25. Which component of the biophysical profile (BPP) is considered an indicator of chronic (long-term) fetal hypoxia if abnormal?