Which triad of findings is most characteristic of classic preeclampsia?

• A. Hypotension, hypoglycemia, and hyperreflexia beginning before 12 weeks' gestation as the defining features of preeclampsia.
• B. Elevated fasting glucose with glycosuria and polyphagia first diagnosed in the first trimester.
• C. Chronic cough, hemoptysis, and elevated liver enzymes without hypertension, occurring only postpartum.
• D. New-onset hypertension after 20 weeks' gestation, proteinuria or other signs of end-organ dysfunction, and peripheral edema.

Answer: (D)