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: Unknown
[{'content': 'Antihypertensive not used in the management of PIH is: \nSelect and explain. \nA. Hydralazine, B. Propranolol, C. Labetolol, D. Alpha methyldopa', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref. KDT. Page. 145\nAnti-hypertensives to be avoided during pregnancy \n\nDiuretics: Tend to reduce blood volume— accentuate uteroplacental perfusion deficit (of toxaemia)—increase risk of foetal wastage, placental infarcts, miscarriage, stillbirth.\nACE inhibitors, AT antagonists: Risk of foetal damage, growth retardation.\nNonselective b blockers: Propranolol has been implicated to cause low birth weight, decreased placental size, neonatal bradycardia and hypoglycaemia.\nSod. nitroprusside: Contraindicated in eclampsia.\n\nAntihypertensives found safer during pregnancy \n\nHydralazine\u2028Methyldopa (a positive Coombs’ test occurs, but has no adverse implication).\nDihydropyridine CCBs: discontinue before labour as they weaken uterine contractions.\nCardioselective b blockers and those with ISA, e.g. atenolol, metoprolol, pindolol, acebutolol: may be used if no other choice.\u2028\nPrazosin and clonidine—provided that postural hypotension can be avoided.', 'role': 'assistant'}]