[2010] Table 4 Clinical criteria for choice of critical care level care Severe pre-eclampsia and needing ventilation care Step-down from level 3 or severe pre-eclampsia with any of the following complications: eclampsia HELLP syndrome haemorrhage hyperkalaemia severe oliguria coagulation support intravenous antihypertensive treatment initial stabilisation of severe hypertension evidence of cardiac failure abnormal neurology care Pre-eclampsia with hypertension Ongoing conservative antenatal management of severe preterm hypertension Step-down treatment after the birth 1.9 Antihypertensive treatment during the postnatal period, including during breastfeeding 1.9.1 Advise women with hypertension who wish to breastfeed that their treatment can be adapted to accommodate breastfeeding, and that the need to take antihypertensive medication does not prevent them from 1.9.2 Explain to women with hypertension who wish to breastfeed that: antihypertensive medicines can pass into breast milk most antihypertensive medicines taken while breastfeeding only lead to very low levels in breast milk, so the amounts taken in by babies are very small and would be unlikely to have any clinical effect most medicines are not tested in pregnant or breastfeeding women, so disclaimers in the manufacturer's information are not because of any specific safety concerns or evidence of harm. Make decisions on treatment together with the woman, based on her 1.9.3 As antihypertensive agents have the potential to transfer into breast milk: consider monitoring the blood pressure of babies, especially those born preterm, who have symptoms of low blood pressure for the first few weeks when discharged home, advise women to monitor their babies for drowsiness, lethargy, pallor, cold peripheries or poor feeding. [2019] to treat hypertension in women during the postnatal period, with appropriate monitoring of maternal renal function and maternal serum potassium. 