Antenatal & maternal medicineFree in the app
Pre-eclampsia risk & aspirin
Aspirin 75–150 mg nightly from 12 weeks to birth.
Source: NICE NG133High risk — any ONE
- Hypertensive disease in previous pregnancy
- Chronic kidney disease
- Autoimmune disease (SLE, antiphospholipid syndrome)
- Type 1 or 2 diabetes
- Chronic hypertension
Moderate risk — any TWO
- First pregnancy
- Age ≥40
- Pregnancy interval >10 years
- BMI ≥35 at booking
- Family history of pre-eclampsia
- Multiple pregnancy
PlGF-based testing helps rule pre-eclampsia in or out at 20+0–36+6 weeks.
A summary for trained clinicians. Always check the full guideline, the patient in front of you and your hospital's protocol. Spotted an error? Tell us.