Intrauterine Growth Restriction (IUGR) MCQ Quiz | Obstetrics

Welcome to the Intrauterine Growth Restriction (IUGR) quiz. This quiz is designed for MBBS students to test and reinforce their understanding of IUGR, a critical topic in Obstetrics. You will face 25 multiple-choice questions covering the etiology, pathophysiology, diagnosis, and management of IUGR. Each question is crafted to reflect the level of knowledge required for your examinations. Carefully read each question and select the best possible answer from the four options provided. After submitting your answers, you’ll receive your score and see a detailed breakdown of correct and incorrect responses. For your revision, you can also download a PDF file containing all the questions and their correct answers. Good luck!

1. What is the most common cause of symmetric (Type I) IUGR?

2. In asymmetric (Type II) IUGR, which fetal biometric parameter is typically most affected, reflecting the ‘brain-sparing’ phenomenon?

3. An increased pulsatility index (PI) in the umbilical artery on Doppler ultrasound is primarily indicative of:

4. The “brain-sparing effect” in a growth-restricted fetus is characterized by a decreased pulsatility index in which vessel?

5. What is the single most useful biometric parameter for assessing fetal growth and detecting IUGR in the third trimester?

6. Absent or reversed end-diastolic flow (AREDF) in the umbilical artery Doppler is a strong indicator of:

7. Which of the following is NOT a recognized maternal cause of IUGR?

8. Oligohydramnios is frequently associated with IUGR. It is defined as an amniotic fluid index (AFI) of:

9. Which congenital infection is classically associated with symmetric IUGR and intracranial calcifications?

10. In the management of a preterm fetus with IUGR and absent end-diastolic flow (AEDF), what is the most appropriate intervention to improve fetal outcomes?

11. The cerebroplacental ratio (CPR) is calculated as:

12. IUGR infants are at an increased risk of all the following neonatal complications EXCEPT:

13. A late-stage and ominous finding on Doppler assessment of an IUGR fetus is:

14. What is the primary pathophysiological reason for oligohydramnios in cases of IUGR due to placental insufficiency?

15. A diagnosis of IUGR is typically made when the estimated fetal weight (EFW) or abdominal circumference (AC) falls below the:

16. Barker’s hypothesis links IUGR to which long-term adult health problem?

17. Which placental abnormality is most strongly associated with severe, early-onset IUGR?

18. The primary goal of antenatal surveillance (e.g., Biophysical Profile, NST) in a fetus with IUGR is to:

19. Which of the following drugs, when used chronically during pregnancy, is a well-known cause of IUGR?

20. Asymmetric IUGR is most commonly caused by extrinsic factors affecting the fetus in the:

21. In an IUGR fetus, what does polycythemia develop in response to?

22. What is the recommended timing of delivery for an IUGR fetus with reversed end-diastolic flow (REDF) in the umbilical artery?

23. Constitutional smallness (SGA without pathology) is best differentiated from pathological IUGR by:

24. The underlying mechanism for IUGR in pregnancies complicated by maternal smoking is:

25. A biophysical profile (BPP) score of 4/10 in an IUGR fetus at 33 weeks is an indication for:

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