Blood pressure and preeclampsia

One blood-pressure reading does not by itself confirm preeclampsia. Clinicians look at repeat measurements, urine protein, blood tests, symptoms, and the baby's growth and wellbeing. Keep every requested antenatal check because the condition may initially cause no noticeable symptoms.

Blood pressure can vary with activity, stress, pain, cuff fit, and measurement technique. A concerning result is usually repeated after rest and considered alongside your earlier readings. Preeclampsia can affect the kidneys, liver, brain, blood clotting, and blood flow through the placenta.

Pre-eclampsia often presents with raised blood pressure; when symptoms occur, they can include a severe headache, visual disturbance, pain beneath the ribs, sudden swelling, nausea, or feeling very unwell. These features require clinical assessment rather than home interpretation.

If a clinic or home monitor shows an unexpected high reading, contact your maternity team the same day for instructions. Sit quietly and repeat it only if your care team has taught you how; a lower repeat reading does not cancel concerning symptoms. Record the readings, time, symptoms, and any blood-pressure medicine taken.

Attend monitoring appointments and take prescribed medicine exactly as directed. Care may include repeat blood and urine tests, closer checks of the baby, medicine to lower blood pressure, and planning the timing and method of birth according to how you and the baby are doing.

Contact maternity triage urgently for a severe or persistent headache, blurred vision or flashing lights, strong pain under the ribs, vomiting with feeling unwell, sudden swelling of the face or hands, breathlessness, or reduced baby movements. Call emergency services for a seizure, collapse, severe breathing difficulty, or loss of consciousness.

Ask what your blood-pressure pattern shows, whether urine or blood tests are abnormal, and how often you and the baby need monitoring. If birth is being discussed, ask what would favour induction or caesarean birth and which changes would alter the planned timing.