This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'Oligohydramnios is/are associated with:a) Neural tube defectb) Renal agenesisc) Postmature birthd) Premature birth \nSelect and explain. \nA. a, B. c, C. bc, D. ad', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Causes of oligohydramnios:\nMnemonic: Dil Mein Ppaar (read as pyaar)\nDil\n\nDrug (Prostaglandin synthetase inhibitors and ACE inhibitors). IUGR Leaking of fluid following amniocentesis or chorionic villus sampling.\n\nMein\n\nMaternal conditions like hypertension and preeclampsia.\n\nPpaar\n\nPostterm pregnancy\nPremature rupture of membrane\nAbruptio-chronic\nAmnion Nodosum.\xa0and chromosomal anomaly like triploidy\nRenal anomalies of fetus(leading to decreased urine production):\nRenal agenesis\nUrethral obstruction (Posterior urethral valve)\nPrune-Belly syndrome\nBilateral multicystic dysplastic kidneys.', 'role': 'assistant'}]