Pre-Eclampsia Flashcards
Degrees of pre-eclampsia
Follows HTN
Mild: 140/90-149/99
Mod: 150/100-159/109
Severe: 160/110
Admit to hospital for pre-eclapmsia
Mild
Mod
Severe
Treat Pre-eclampsia?
Mild: no
Moderate: oral labetalol (150/80-100)
Severe: PO labetalo (150/80-100)
Measure BP in pre-eclampsia
mild: 4+/day
Mod: 4+/day
Severe: >4 depends on circumstances
Test for proteinuria in pre-eclampsia
Mild: no need to repeat quantification of proteinuria
Moderate: do not repeat quantification of proteinuria
Severe: do not repeat quantification of proteinuria
Blood test in pre-eclampsia
Kidney fucntion
electrolytes
FBC
LFT + bili
Mild 2/wk
mod/sev: 3/wk
Diagnosis of pre-eclampsia
BP >140/90
Proteinuria (PCR >30)
Antenatal Mx of Pre-eclampsia
Treat htn: Labetalol (nifedipine/methyldopa) 2nd line: hydralazine, amlodipine, doxazocin
Regular foetal surveillence (growth, liquor, UA doppler)
Steroids if delivery <34 weeks
do NOT deliver unless mother stable
avg. Dx to delivery = 2 weeks
Fetal Monitoring in Pre-eclampsia
Growth scans and UA dopplers (PET)
Mild/mod GHTN: USS FG, amnio vol., UA doppler if Dx <34wks, CTG only if abnormal. 15% will -> pre-eclampsia
Severe GHTN or Pre-eclampsia:
- CTG at Dx, if normal 1 weekly, repeat if:
- RFM, PVB, Abdo pn, det. maternal condition
- if planning conservative Mx then just fo USS FG, AFVA, UADV
High risk of Pre-eclampsia:
- USS F, AFVA, UADV at 28-30wks
repeat 4 weeks later if:
- Hx: severe pre-eclampsia, PE req. birth <34wk, PE w/SGA, IU death, abruption
PET
Pre-eclamptic toxaemia
Cx of pre-eclampsia
Bilateral notching and increased pulsatility index at 24wks predicts PET
Timing of birth in Pre-eclampsia
Manage conservatively until 34wk
Offer birth to pts w/PE <34wks and after CS if:
- severe refractory HTN, indications
Recommend birth to pts w/PE + sev. HTN once BP controlled
Offer to pt w/mild/mod PE at 34-34+6
Recommend birth within 24/48hrs for women w/PE and mild/mod htn after 37wk
Indications for delivery in pre-eclampsia
Uncontrollable BP
Rapidly worsening biochem/haematology
Eclampsia
Maternal Sx
Foetal distress (sev. IUGR/ red. UA EDF
Intrpartum care in pre-eclampsia
Continuous CTG
Regional anaesthesia helps control BP
Operative birth if refractory HTN
AVOID ergometrine
BP measurements hourly if mild/mod, cont. if sev.
Continue antenatal anti-htn
do NOT routinely limit the duration of second stage in women:
-mild/mod htn or sev. in target range
Medical Mx of Severe HTN or pre-eclampsia in critical care setting
IV MgSO4 given to pt. w/ sev htn/PE who has Hx eclamptic fit
Consider MgSO4 in critical care if birth <24hrs
Continue MgSO4 for 24hrs after last seizure or following delivery
MgSO4 Risk, counter?