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What is Polyhydramnios is seen in all except: and explain in detail?
Ans: D (Renal agenesis) Ref: Ian Donald: Practical Obstetric Problems 6th ed. Pg 366, D.C.Dutta's Textbook of Obstetrics, 7th ed. pg. 211,215.Explanation:The main source for amniotic fluid is fetal urine.So, when there are no kidneys, there is no urine.So, it results in oligohydramnios.Hence. D (Renal agenesis) is the answer.Causes for HydramniosFetal malformationsCNS defects -AnencephalySpina bifidaHydrocephalus Cardiac defectsVSDASDPulmonary stenosisCraniofacialCleft lipCleft palateChoanal atresiaThoraxDiaphragmatic herniaGastrointestinalOesophageal atresiaTracheo-esophageal fistulaMaternal causesDiabetesMultiple pregnancy.