Fetal Circulation
- Previous year questions on Fetal Circulation for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Paediatrics section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 19 live questions in Fetal Circulation.
- 2 of 19 questions carry a verified exam year: 2018, 2020.
- Paediatrics is worth about 10 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 6 Sept 2026.
Q1.In full term neonates, the ductus aeriosus closure is due to
- ACardiac output
- BProstaglandins
- CLow pressure CO2
- DHigh pressure O2✓ Correct answer
Q2.Umbilical arteries arise from which fetal vessels?
- AAorta
- BCarotid arteries
- CDuctus arteriosus
- DIliac arteries✓ Correct answer
Q3.In morbus caeruleus foramen ovale closes after
- A6 months
- B2 years
- C1 year
- DNever✓ Correct answer
Q4.In a fetus highest O2 concentration found in
- Asvc
- Bivc✓ Correct answer
- Cright ventricle
- Daorta
Q5.Most oxygenated fetal vessel is?
- AUmbilical artery
- BDuctus arteriosus
- CUmbilical vein✓ Correct answer
- DDuctus venosus
Q6.In a fetus highest oxygen concentration is found in?
- AInferior vena cava✓ Correct answer
- BSuperior vena cava
- CLeft ventricle
- DAscending aorta
Q7.The percentage of HbF at birth is:
- A20%
- B50%
- C70%✓ Correct answer
- D90%
Q8.Oxygenated blood to the fetus is carried by –
- AUmbilical artery
- BUmbilical vein✓ Correct answer
- CSVC
- DPulmonary artery
Q9.Ligamentum teres of the liver is a remnant of ________
- AUmbilical arteries
- BUmbilical vein✓ Correct answer
- CDuctus venosus
- DDuctus arteriosus
Q10.The total fetal cardiac output at term is estimated to be ______?
- A150 mL/Kg body weight
- B250 mL/Kg body weight
- C350 mL/Kg body weight
- D450 mL/Kg body weight✓ Correct answer
Answer key
Q1: D. High pressure O2; Q2: D. Iliac arteries; Q3: D. Never; Q4: B. ivc; Q5: C. Umbilical vein; Q6: A. Inferior vena cava; Q7: C. 70%; Q8: B. Umbilical vein; Q9: B. Umbilical vein; Q10: D. 450 mL/Kg body weight.
Other topics in Paediatrics
- Neonatology Basics and Routine Newborn Care
- Disorders of the Newborn
- Neonatal Conditions Requiring Special Care
- Apgar Scoring and Neonatal Resuscitation
- Milestones of Development
- Patterns of Growth and Development
- Infant Nutrition and Breastfeeding
- Protein-Energy Malnutrition
- Fat-Soluble Vitamin Deficiencies
- Water-Soluble Vitamin and Trace Element Deficiencies
- Disorders of Fluid and Electrolyte Balance
- Mendelian and Non-Mendelian Inheritance Disorders
- Chromosomal Abnormalities
- Inborn Errors of Amino Acid Metabolism
- Urea Cycle, Complex Molecule and Carbohydrate Metabolic Disorders
- Poliomyelitis and HIV/AIDS
- Bacterial and Parasitic Infections in Children
- Measles, Mumps, Rubella and Other Viral Illnesses
- Surgical GI Conditions in Children
- Medical GI Conditions in Children
- Paediatric Liver Disorders
- Respiratory Disorders of the Newborn
- Respiratory Disorders in Childhood
- Acyanotic Congenital Heart Disease
- Cyanotic Congenital Heart Disease
- Nephrology in Children
- Urology in Children
- Disorders of the Paediatric Nervous System
- Thyroid Disorders in Children
- Congenital Adrenal Hyperplasia and Allied Adrenal Disorders
- Pituitary Gland Disorders
- Pubertal Disorders
- Paediatric Haemato-oncology
- Childhood Solid Tumours
- Musculoskeletal Disorders in Children
- Rheumatological Disorders in Children
- Paediatric Haematology: Bleeding and Clotting Disorders
- Paediatric Anaemias