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': 'A 32 weeks pregnant women presents with mild uterine contraction and on examination her vitals are stable and placenta previa type III is present. Best m/n is: \nSelect and explain. \nA. Bed rest + Dexamethasone, B. Bed rest + Nifedipine and Dexamethasone, C. Bed rest + Sedation, D. Immediate caesarean section', 'role': 'user'}, {'content': 'Answer: B \nExplanation: At 32 weeks patient is presenting with uterine contraction which is a warning symptom of preterm labour.\nManagement of patient with placenta previa and preterm labour:\n\nTocolytic agent: “Uterine contractions are common in patients with placenta previa. Since uterine contractions have the potential to, disrupt the placental attachment and aggravate the bleeding, most obstetricians favor the use of tocolytic agents in the expectant management of patient with placenta previa”.\nMost commonly used tocolytics in case of placenta previa.\n\n\nNifedipine\nMagnesium sulphate\n\n\nTocolytics which are not used –\n\n\nTerbutaline and Ritodrine: They cause tachycardia and make the assessment of patient’s pulse rate unreliable.\nIndomethacin: It causes inhibition of platelet cyclo oxygenase system and prolongs the bleeding time.\n\n\nBesides this - patient should be:\n\n\nPut on bed rest in left lateral position.\nGlucocorticoids are given to hasten lung maturity.', 'role': 'assistant'}]