Systematic reviews with meta-analysis represent the highest level of evidence used to guide clinical practice. The defining criteria used to diagnose preeclampsia have evolved, and will likely continue to evolve. Proteinuria is sufficient but not necessary when defining preeclampsia. Hypertension without proteinuria but with severe features is diagnostic. The methods used to measure urinary protein have changed. The gold standard remains the 24-hour urine test. The efficacy of low-dose aspirin in preventing preeclampsia is a function of baseline risk. Data suggest that treating mild to moderate blood pressure has clear maternal benefits with little fetal or neonatal risk.
Keywords: Aspirin; Criteria; Hypertension; Pregnancy; Proteinuria; Treatment.
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