Hypertensive Disorders Flashcards
Deadly triad of Pregnancy
- Hypertensive Disorders (16%)
- Hemorrhage (13%)
- Infection (Abortion- 8%; Sepsis -2%)
How much does hypertensive disorders complicate pregnancies?
5-10%
Describe Gestational HTN
BP >140/90 AFTER 20 weeks AOG
(-)proteinuria
Resolves 12 weeks postpartum
Proteinuria in pregnancy
> 300mg/24hr
Protein:Creatinine ratio >0.3
Dipstick 1+ persistent
Describe preeclampsia and eclampsia syndrome
Both occurs BP >140/90 AFTER 20 weeks AOG in previously normotensive woman
(+) Proteinuria
*Eclampsia (+) seizure
Other labs that you can consider to identify preeclampsia and eclampsia syndrome
- CBC with PC = Thrombocytopenia (<100,000/uL)
- UA with stat albumin; BUN; Cr = Renal insufficiency (Cr >1.1dL or 2x)
- AST & ALT = Liver involvement (2x)
- Cerebral symptoms (Headache, Visual Disturbances, Convulsions)
- Pulmonary Edema
- Electrolytes
- LDH (>600 IU/L) = Assess hemolysis in HELLP syndrome
Describe Chronic HTN
(+) Hx of HTN BEFORE 20 weeks AOG
(+) HTN AFTER 12 weeks pp
Describe Preeclampsia superimposed on Chronic HTN
AFTER 20 weeks AOG…
(+) Proteinuria
Sudden increase in BP/Proteinuria after 20 weeks
(+)Thrombocytopenia
BP during trimesters
1st: Increased
2nd to early 3rd: Decreases
Late 3rd: Normal
Pathology of preeclampsia
Systematic endothelial leak
Risk factors of Preeclampsia
- Young and nulliparous
- Genetic Predisposition
- Maternal Weight, Obesity, Metabolic Syndrome
- Multifetal gestation
- Hyperhomocysteinemia
- Hx of preeclampsia
Management for Pre-eclampsia
1st line: Metyldopa 500mg PO q6-8h (max: 3g/day)
2nd line: Hydrazaline 25mg PO q6-12h
Complications of Pre-eclampsia
Abruptio placenta
End organ damage
Intrauterine Growth Restriction (IUGR)
Increased risk for CS
Emergency Medicine for Pre-eclampsia
Hydralazine 5mg IV PRN q20mins for BP >160/100 (max: 30mg “5-5-5-10-10”)
How does Magnesium Sulfate helps in Pre-eclampsia?
Seizure protection; Protects Infant’s Neurological development