This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical, surgical and gynaecological illness complicating pregnancy, Subject name: Gynaecology & Obstetrics
Obesity in pregnancy causes all of the following complications except : 
Select and explain. 
A. Abnormal uterine action, B. Fetal neural tube defect, C. Precipitate labour, D. Venous thrombosis
C: Precipitate labour
Answer: C: Precipitate labour 
Explanation: Obesity Patient feels uncomfoable and dyspnoeic on exeion hypeension and gestational diabetes difficulty in diagnosis of presentation fetal macrosomia fetal malformations especially NTD increased incidence of abnormal uterine contractions and prolonged labour shoulder dystocia puerperal UTI,PPH venous thrombosis and lactation failure D.C.DUTTA'S TEXTBOOK OF OBSTETRICS,pg no:344,7th edition