New-Onset Hypertension (Required for Preeclampsia Diagnosis)

No — BP below threshold or pre-existing hypertension+0Yes — new-onset SBP ≥ 140 or DBP ≥ 90 on ≥2 occasions ≥4h apart after 20 weeks+1

Proteinuria (End-Organ Feature)

No significant proteinuria+0Yes — proteinuria ≥ 300 mg/24h or PCR ≥ 0.3+1

Thrombocytopenia (End-Organ Feature)

No — platelets ≥ 100,000/µL+0Yes — platelets < 100,000/µL+1

Renal Insufficiency (End-Organ Feature)

No renal insufficiency+0Yes — creatinine > 1.1 mg/dL or doubling from baseline+1

Liver Involvement (End-Organ Feature)

No liver involvement+0Yes — ALT ≥ 2× ULN or severe RUQ/epigastric pain+1

Pulmonary Edema (End-Organ Feature / Severe Feature)

No pulmonary edema+0Yes — pulmonary edema confirmed+1

Severe Hypertension (Severe Feature)

No severe hypertension (SBP < 160 and DBP < 110)+0Yes — SBP ≥ 160 or DBP ≥ 110 on ≥2 occasions ≥4h apart+1

Neurological Symptoms (Severe Feature)

No neurological symptoms+0Yes — new severe headache unresponsive to analgesics or visual disturbances+1

Preeclampsia Diagnostic Criteria and Severity Classification