Ob exam 2 - intra comps Flashcards
when is PROM considered prolonged
when membranes have been ruptured for greater than 18 hours
fetal & newborn risk of (P)PROM
-respiratory distress syndrome (esp pporm)
-sepsis
-malpresentation
-prolapse of the umbilical cord
-non reassuring FHR pattern
-compression of the umbilical cord
-premature birth
nursing care of clients with PPROM
-determine duration of rom
-assess GA
-observe for signs & symptoms of infection
-assess hydration status
-assess fetal status
-assess childbirth preparation & coping
-encourage resting on left side
-comfort measures
-education
what meds might you deliver to a pt w/ (P)PROM
maternal corticosteroid administration to enhance fetal lung maturity
betamethasone 12 mg IM x 2 doses; 12-24 hrs apart
when does preterm labor (PTL) or premature onset of labor (POL) occur
between 20-36 6/7 weeks
uterine contractions that correspond to PTL
4 within 20 mins or 8 in 1 hour
PTL S/s
-cervical change or dilation
-mild menstrual like cramps felt low in the abdomen
-pelvic pressure
-ROM
-low, dull backache
-increased vaginal discharge
strongest predictors of preterm birth
-positive fetal fibronectin results
-abnormal cervical length measurement (shortening, <25mm before term
-hx of PTL
-presence of infection
what to monitor w/ procardia (nifedipine)
BP bc we are not giving it for high BP but instead to relax the uterine muscles
do not give if SBP is <90
what are the tocolytic medications to stop contractions
-procardia (nifedipine)
-mag sulfate
-terbutaline (brethine)
-progesterone therapy
what to monitor w/ mag sulf
alertness, respirations, BP, reflexes & I/Os
what to monitor w/ terbutaline
length of administration -> acute use so only 2-3 days
do not give if HR is greater than 120 bc can cause tachy
side effects include flushes face, heart is racing and trembling
does mag sulf need to be in the primary or secondary line
primary only do enough for 2hr worth at a time for safety
what is a secondary benefit of mag sulf when being used for preterm labor
neuroprotective decreases the risk of intracranial hemorrhage & necrotizing enterocolitis in the babies
what is the steroid window
48 hours past 1st dose
what is the effect of steroids that promotes lung maturity
causes a release of surfactant
cervical insufficiency “incompetent cervix”
painless dilation of the cervix without contractions cervical defect, will see shortened cervical length <25 mm
dx could be made if pt has had pervious miscarriages w/o contractions
cervical insufficiency medical care
-serial cervical ultrasounds beginning between 16-24 wks GA
-bed rest
-progesterone supplementation
-abx (not entire pregnancy)
-education about signs of impending birth (lower back pain, pelvic pressure, changes in discharge & bleeding after cerclage) *call HCP**
cervical insufficiency surgical intervention
cerclage surgical closure of cervix using suture (stitching)
when would a cerclage be used
-cervical insufficiency
-prophylactic pregnancy w/ multiples
if a cerclage is placed, what should be monitored
bleeding
activity level -> pt does not need to be on strict bed rest at home, goal is for cervix to stabilize and light activity be performed
if a cerclage is placed, when is it removed
for delivery -> cut either before a vaginal birth or if C section then can be left in place and removed later
placenta previa
placental implantation in the lower uterine segment which causes placenta villi to be torn from the uterine wall leading to bright red painless bleeding
placenta previa causes
-high gravidity
-increasing age / advanced maternal age
-prior C section
-recent spontaneous or induced abortion
-cigarette smoking
-male fetus (more common)
placenta previa: complete
the placenta completely covers the cervix
placenta previa: partial
the placenta partially covers the cervix
placenta previa: marginal
placenta is near the cervix low lying
placenta previa: low lying
low lying
fairly close to cervix but not touching it
placenta previa nursing care
-no vaginal exams
-assess for bleeding (active = transfusion)
-VS & fetal monitoring & contractions
-anticipate unengaged fetal presenting part (transverse lie is common)
-obtain consent for C section ICE
-administer tocolytics as ordered
abruptio placentae
premature separation of a normally implanted placenta from the uterine wall
abruptio placentae: marginal
placenta separates at its edges
abruptio placentae: central
placenta separates centrally -> concealed bleeding hard abdomen where blood is pooling
abruptio placentae: complete
total separation -> massive vaginal bleeding