labor and birth complications (unit 3) Flashcards
pre-term labor (PTL)
- gestation b/t 20-37 wks
- AND uterine ctx
- AND cervical change
PTL risk factors
- hx of PTB (greatest predictor)
- low SES
- non-white
- maternal age extremes
- low pre-pref rate
- substance abuse
- inc. uterine volume
- uterine abnormalities
- infection
subjective s/sx PTL
- cramping
- low back pain/pressure
- abd. tightening
- vag. bleeding/discharge
- urinary freq.
- malaise
objective s/sx PTL
- > 6 ctx/hr
- vag. bleeding/discharge
- cervical dilation/effacement
labs for PTL
- UA/culture
- NST
- BPP
- U/S (cervical length)
- fetal fibronectin (FFN)
- swab for infection
PTL tx
- prevention/early recognition
- tocolysis drug
- steroids for fetal lungs
- bedrest/pelvic rest
- hydration
- abx for infection
tocolysis
- tx used to stop uterine activity
* goal is to but time for steroid admin
tocolytic
- med to stop uterine activity
- off label
- MgSO4
- terbutaline
- Nifedipine
- indomethacin
MgSO4
- CNS depressant to prevent seizure
- Relaxes smooth muscle (↓ vasoconstriction)
- SE is that BP is lowered
- Next to Pit, most common drug used in labor and delivery
- Given IVPB via pump
- Effect is immediate
terbutaline
- tocolytic
- SQ q20min for 3 doses
- then PO q 4-6 hr
- monitor VS, lung sounds, I/O
- DONT give if HR > 120
Nifedipine/Indomethacin
- tocolytics
- PO (not as fast as others)
- Indomethacin not used after 32 wks or longer than 48 hrs (last choice med)
steroids
- best PTL intervention
- most common is Celestone
- speeds FLM, by stimulating surfactant production
- given b/t 24-34 wks gestation
low birth weight (LBW)
- any baby born < 2500g REGARDLESS of gestation
* usually caused by IUGR
greatest preterm survival prognosis
•27+ wks have 90% chance of survival
oligohydramnios
- not enough amniotic fluid
- AFI < 5
- usually caused by renal issue, PROM, post dates, or UPI
- tx: FHR monitoring; amnio-infusion
risks r/t oligohydramnios
- cord accident
- fetal malformation
- hypoplastic lungs
polyhydramnios
- too much amniotic fluid
- AFI > 20
- caused by CNS/GI track malformations and mat. diabetes
- tx: FHR
risks r/t polyhydramnios
- unsuccessful labor
- cord prolapse
- PROM
PROM
- premature rupture of membranes
* water breaks 1+ hr before onset of labor
PPROM
•preterm premature rupture of membranes
•water breaks 1+ hr before onset of labor AND gestation < 37 wk
•hospitalized for rest of PG
*goal to get to 34 wks
PROM/PPROM risk factors
- infection
- incomp. cervix
- fetal abnormalities
- nutritional deficiencies
- polyhydramnios
- recent OB procedure
risks r/t PROM
- INFECTION
* cord prolapse (olighydramnios)
risks r/t PPROM
- INFECTION
- cord prolapse (olighydramnios)
- fetal abnormalities (musculoskeletal and lung)
how is ROM diagnosed
•Fern Test
chorioamnionitis
•infection of chorion and amnion
•higher risk if membranes ruptured long
•s/sx: fetal tachy, maternal fever, foul fld.
*notify MD
dystocia
- long, difficult, or abnormal labor r/t 5 Ps (power, passageway, passenger, position, psyche)
- can lead to infection, C/S, and PPH
dystocia risk factors
- short
- overweight
- > 40 y/o
- uterine abnormalities
- pelvic soft tissue issues
- CPD
- fetal macrosomia