- Severe features of preeclampsia include any of the following findings: systolic blood pressure of 160 mmHg or higher, or diastolic blood pressure of 110 mmHg or higher on two occasions at least 4 hours apart while the patient is on bed rest (unless antihypertensive therapy is initiated before that time),thrombocytopenia, impaired liver function, progressive renal insufficiency, pulmonary edema or new onset cerebral or visual disturbances