MOET Algorithm
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Transcript of MOET Algorithm
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8/10/2019 MOET Algorithm
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Algorithm 16.1 Pre-eclampsia/eclampsia
Do not leavepatient alone
Airway
Breathing
Circulation
Control seizures
Controlhypertension
If notpostpartum...
Deliver
■ Place in semi-prone position
■ Call for HELP – duty obstetric andanaesthetic SpRs; senior midwife
■ Inform consultants – obstetrician and
anaesthetist
■ Assess
■ Protect airway
■ Ventilate as required
■ Loading dose MgSO4:4 g MgSO4 in 20% solution IV over10–15 minutes. Add 8 ml of 50%MgSO4 solution to 12 mlphysiological saline
■ Maintenance dose MgSO4: 1 g perhour infusion. Add 25 g MgSO4(50 ml) to 250 ml physiological saline1 g MgSO4 = 12 ml per hour IV
■ If seizures continue or recur: MgSO42 g ≤ 70 kg; 4 g ≥ 70 kg IV as perloading dose over 5–10 minutes. If thisfails: diazepam 10 ml IV orthiopentone 50 mg IV paralyse andintubate
■ Monitor: Hourly urine output,respiratory rate, O2 saturation &
patellar reflexes – every 10 minutes forfirst 2 hours and then every 30minutesCheck serum magnesium if toxicity issuspected on clinical grounds
■ Stop infusion: Check magnesiumlevels and review management withconsultant if:Urine output <100 ml in 4 hours
or if Patellar reflexes are absentor if Respiratory rate < 16/minuteor if Oxygen saturation < 90%
■ Always get suppression of reflexesbefore respiratory depression
■ Antidote: 10% calcium gluconate10 ml IV over 10 minutes
OBSERVATIONSPulse oximeter BPRespirationsTemperatureECGTest urine for proteinHourly urine outputFluid balance chartsFHR – monitor continuously
INVESTIGATIONSFBC & plateletsU&EsUrate LFTCoagulation screenGroup & hold serumMSSU24-hour urinecollections for:
■ total protein &
creatinine clearance■ catecholamines
■Assess
■ Maintain patency
■ Apply oxygen
■ Evaluate pulse and BP
■ If absent, initiate CPR and call thearrest team
■ Secure IV access as soon as safelypossible
■ Treat hypertension if systolic BP> 170 mmHg or diastolic BP
> 110 mmHg or MAP >125 mmHgAim to reduce BP to around130–140/90–100 mmHg Bewarematernal hypotension and FHRabnormalities – monitor FHR withcontinuous CTG
■ HYDRALAZINE 10 mg IV slowlyRepeated doses of HYDRALAZINE5 mg IV 20 minutes apart may begiven if necessary
Close liaison with anaesthetists: mayrequire plasma expansion
■ LABETALOL 50 mg IV slowly if BPstill uncontrolledIf necessary repeat after 20 minutes orstart IV infusion: 200 mg in 200 mlphysiological saline at 40 mg/hour,increasing dose at half-hourlyintervals as required to a maximum of160 mg/hour
■ The continuation of pregnancy is notan option if eclampsia occurs
■ STABILISE THE MOTHER BEFORE
DELIVERY■ DELIVERY IS A TEAM EFFORT
involving obstetricians, midwives,anaesthetists and paediatricians
■ Ergometrine should not be used insevere pre-eclampsia and eclampsia
■ Consider prophylaxis againstthromboembolism
■ Maintain vigilance as the majority ofeclamptic seizures occur afterdelivery
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