Scenario: A 28-year-old primigravida, 12 hours post-vaginal delivery after an 18-hour prolonged labor, presents with BP 160/110 mmHg, severe headache, and visual disturbances.
Priority Nursing Actions
- Ensure Immediate Safety: Initiate seizure precautions (padded side rails, suction and oxygen at bedside, call light within reach). Maintain a quiet, dimly lit environment to minimize CNS stimulation.
- Notify Provider: Urgently report findings and anticipate orders for IV magnesium sulfate (loading dose 4-6g over 15-20 minutes, then maintenance 1-2g/hour) and an IV antihypertensive (e.g., labetalol 20mg IV push, hydralazine 5-10mg IV push).
- Continuous Monitoring: Assess vital signs every 15 minutes until stable. Monitor deep tendon reflexes (DTRs) hourly and respiratory rate hourly for magnesium toxicity (absent DTRs, RR < 12/min, decreased urine output).
- Fetal/Neonatal Context: While the infant is delivered, maternal stabilization is the priority to prevent eclampsia, hemorrhagic stroke, or PRES.
Key Assessment Pitfalls
- Do not dismiss hypertension as anxiety or pain: A BP ≥ 160/110 mmHg with neurological symptoms is a hypertensive emergency, not a benign variant.
- Differentiate from normal postpartum changes: A displaced fundus (full bladder) or moderate lochia rubra are common and managed conservatively; they do not take priority over severe preeclampsia.
- Recognize the "fourth trimester" vulnerability: Preeclampsia can occur for the first time up to 6 weeks postpartum. All postpartum discharge education must include warning signs: severe headache, vision changes, epigastric pain, and shortness of breath.
Evidence-Based Management
Magnesium sulfate remains the gold standard for seizure prophylaxis in severe preeclampsia/eclampsia. Antihypertensive therapy should target a BP of ≤ 150/100 mmHg to prevent maternal cerebrovascular events while maintaining uteroplacental perfusion (though the placenta is now delivered, the principles of gradual reduction apply).