Problem-Based Drill on Pre-Eclampsia for Primary Care Medical Officers
Overview of Training Structure
This drill should be structured around the PRECOG (Pre-eclampsia Community Guideline) framework, which provides evidence-based protocols specifically designed for primary care settings 1. The training must emphasize that 46% of maternal and 65% of fetal deaths from pre-eclampsia could have been prevented with proper identification and response to risk factors and symptoms 1.
Module 1: Risk Assessment at First Antenatal Visit (Before 20 Weeks)
Learning Objectives
Medical officers must identify risk factors and determine appropriate monitoring levels or referral needs.
Case Scenario 1: Initial Risk Stratification
Present a 28-year-old woman, first pregnancy, BMI 37, booking BP 85/55 mmHg
Key Actions to Practice:
- Systematically screen for ALL predisposing factors:
- First pregnancy (nulliparity)
- Age ≥40 years
- BMI ≥35
- Family history of pre-eclampsia (mother or sister)
- Booking diastolic BP ≥80 mmHg
- Proteinuria at booking (≥+ on dipstick on multiple occasions)
- Multiple pregnancy
- Pre-existing diabetes, hypertension, or renal disease
- Antiphospholipid antibodies
- Previous pre-eclampsia
- ≥10 years since last baby 1
Decision Point: This patient has TWO risk factors (nulliparity + BMI ≥35). According to PRECOG, women with two predisposing factors require early specialist referral for individual assessment 1.
Case Scenario 2: High-Risk Requiring Immediate Referral
Present a 35-year-old, second pregnancy, previous severe pre-eclampsia at 32 weeks
Immediate Action Required: Refer before 20 weeks for specialist input because she has previous pre-eclampsia 1.
Other conditions requiring early referral:
- Multiple pregnancy
- Pre-existing hypertension or booking diastolic BP ≥90 mmHg
- Pre-existing renal disease or booking proteinuria
- Pre-existing diabetes
- Antiphospholipid antibodies present
- Any TWO other risk factors from the list above 1
Module 2: Community Monitoring After 20 Weeks
Learning Objectives
Determine appropriate monitoring frequency and recognize when to escalate care.
Case Scenario 3: Monitoring Schedule Decision
Present a 32-year-old, first pregnancy, no other risk factors, now 24 weeks gestation
Correct Monitoring Protocol:
- 24-32 weeks: Assess at least every 3 weeks
- 32 weeks to delivery: Assess at least every 2 weeks
- This is Level 2 monitoring (one risk factor present) 1
Critical Teaching Point: Pre-eclampsia can progress to life-threatening status within 2 weeks on average. Before 32 weeks, onset has the most serious outcomes, with 50% of women requiring delivery within 72 hours of diagnosis 1.
Module 3: Assessment Content and Recognition of Warning Signs
Learning Objectives
Accurately measure blood pressure, test for proteinuria, and identify symptoms requiring urgent action.
Case Scenario 4: Blood Pressure Measurement Errors
Demonstrate common BP measurement errors that have been implicated in maternal deaths 1
Practice Points:
- Correct cuff size
- Proper arm position
- Adequate rest period
- Diastolic reading at Korotkoff V
- Document both systolic and diastolic readings
Case Scenario 5: Symptom Recognition
Present a 36-week pregnant woman with "just a headache"
Essential Assessment (Box 4 from PRECOG): After 20 weeks, assess for:
- New hypertension (BP ≥140/90 mmHg)
- New proteinuria (≥+ on dipstick)
- Headache or visual disturbances
- Epigastric pain or vomiting
- Reduced fetal movements or small-for-gestational-age infant 1
Any ONE of these may be the first indication of pre-eclampsia 1.
Module 4: Action Thresholds and Referral Decisions
Learning Objectives
Make rapid, appropriate referral decisions based on specific clinical findings.
Case Scenario 6: New Hypertension Without Proteinuria at 28 Weeks
BP 145/92 mmHg, no proteinuria, no symptoms
Correct Action: Refer for hospital assessment within 48 hours 1
If same BP WITH headache: Refer for same-day hospital assessment 1
Case Scenario 7: Severe Hypertension
BP 165/105 mmHg at 34 weeks, proteinuria ++ on dipstick
Correct Action: Arrange immediate admission 1
Critical Decision Algorithm:
IMMEDIATE ADMISSION required for:
- Diastolic BP ≥110 mmHg + proteinuria ≥+
- Systolic BP ≥170 mmHg + proteinuria ≥+
- Diastolic BP ≥90 mmHg + proteinuria ≥+ + ANY symptom 1
Same-day assessment required for:
- Diastolic BP ≥100 mmHg (without proteinuria)
- Systolic BP ≥160 mmHg (without proteinuria)
- Diastolic BP 90-99 mmHg + ANY symptom
- Diastolic BP ≥90 mmHg + proteinuria ≥+ (without symptoms)
- Proteinuria ≥+ with symptoms (without hypertension)
- Epigastric pain alone 1
48-hour assessment required for:
- Diastolic BP 90-99 mmHg without symptoms or proteinuria
- Proteinuria ≥++ without hypertension or symptoms 1
Case Scenario 8: Isolated Symptoms
30 weeks gestation, BP 130/80 mmHg, no proteinuria, severe epigastric pain
Correct Action: Refer for same-day hospital assessment 1
Teaching Point: Epigastric pain requires same-day assessment even without hypertension or proteinuria, as it may indicate HELLP syndrome or hepatic involvement.
Module 5: Critical Knowledge Points
Simulation Scenario: Eclampsia Recognition
Woman at 38 weeks suddenly has seizure in clinic
Immediate Management Drill: Research demonstrates that simulation-based training significantly improves eclampsia management skills 2, 3, 4. Simulation training in local hospitals is as effective as training in simulation centers 5.
Key Facts to Emphasize:
- 34% of eclamptic women had maximum diastolic BP ≤100 mmHg 1
- Eclampsia is most common at term, not just in severe hypertension 1
- Pre-eclampsia can develop between scheduled assessments 1
Common Pitfalls to Address:
Waiting for proteinuria: New hypertension before 32 weeks carries 50% risk of developing pre-eclampsia 1
Dismissing single + proteinuria: While prone to false positives, + proteinuria with new hypertension should be treated as pre-eclampsia until proven otherwise 1
Ignoring symptoms without hypertension: Headache with visual disturbances or epigastric pain requires investigation even with normal BP 1
Inadequate patient education: Women must know symptoms and how to contact healthcare providers 24/7, as pre-eclampsia can develop between visits 1
Module 6: Post-Training Assessment
Practical OSCE Stations:
Research shows simulation combined with theoretical training produces superior knowledge retention and clinical skills compared to didactic teaching alone 2, 3, 4.
Station 1: Risk assessment at booking visit with decision on monitoring level or referral
Station 2: Proper BP measurement technique demonstration
Station 3: Interpretation of clinical findings and appropriate referral decision using PRECOG action table
Station 4: Patient counseling on warning symptoms and when to seek care
Station 5: Simulated eclampsia scenario with team response
Implementation Notes
The USPSTF recommends screening for preeclampsia with blood pressure measurements throughout pregnancy 6. This training drill operationalizes that recommendation for primary care settings using the evidence-based PRECOG framework 1.
Simulation-based drills should be conducted on-site in local health facilities 7, 5, as this approach successfully identifies system deficiencies and improves real-world performance without requiring expensive simulation centers 5.