The following are contraindicated in pregnancy except
A. Sodium nitroprusside is not given during pregnancy due to toxicity.
B. Beta blockers during pregnancy decrease birth weight, placental size, and hypoglycemia. Look for neonatal bradycardia and hypotension.
Efficacy of Labetalol for short-term management appears equal to Methyl-dopa.
C. Diuretics decrease blood volume and causes Utero placental perfusion deficit. So there is increased is increased fetal loss, placental infarcts, miscarriage, still birth.
ACE Inhibitiors compromise fetal renal system leading to oilguria even fatal anuria resulting in oligohydramnios which may cause growth retardation, Craniofacial malformations etC.
So, Labetalol is the best answer here.