Preterm Birth and Labor Flashcards
What is Preterm Labor
Any TRUE labor that is 20-37weeks gestation
what is true labor
- cervical changes
* uterine contractions
Preterm infant (time in weeks)
anyone born before 37 weeks
Low Birth Weight Infant
2500 grams
5.5 lbs
extremely low borth weight infant
less than 1000 grams, 1kg, 2.2 lbs
risk factors of premature birth/labor (3)
- demographic
- biophysical
- behavioral- psychosocial
How would you educate a pregnant mother to avoid premature birth/labor?
maintain proper nutrition
Biochemical Markers of Preterm Birth and Labor (2)
Fetal Fibronectin; Salivary Estriol
What is Fetal Fibronectin
glycoprotein found in the plasma, 24-34 weeks timeframe, produced in cervical canal; tested during vaginal exams
Salivary Estriol
Estrogen secreted by the placenta
Diagnosis of PreTerm Labor (3)
- Gestational Age (20-37 weeks)
- Onset of contractions
- cervical changes (effacement, dilation)
Criteria for treatment of preteram labor
dilation 2-4 cm
effacement of 80%+
informed consent
Danger of Tocolytic Drugs
caution when pt is put on IV lfuids; strict I/O. should be between 1500-2400 mL/24hrs
Beta Adrenergic Agents
relaxes smooth muscles, stops uterine activity
side effects: ^^ HR
Ex. Brethine, Yutopar
Magnesium Sulfate
BLACK BOX WANING
give with a bronchodilator
stops seizure from occurring
Corticosteroids (given for what)
stimulate fetal lung maturation
promotes the release of surfactant
Corticosteroids (when not recommended)
- cord prolapse
- chorioamnionitis
- placental abruption
Corticosteroids Nursing Considerations
- check blood glucose levels
* assess for cushing syndrome
Antibiotics for Maternal Infections
Ampicillin. If allergic, give Vancomycin
Premature Rupture of Membranes (PROM)
leakage of amniotic fluid for at least 1 hr before labor
how can you tell the differnce between amniotic fluid and regular vaginal discharges?
amniotic fluid has a “fern” shape when observed under microscope
PROM
Premature Rupture of Membranes
Happens before 37 weeks
What do you assess for in PROM
prolapse of cord
Home Nursing Care of Pregnant Mother
- maintain BP
- do not insert anything in vagina
- monitor kick counts
- no tub baths