OB (9/10) Flashcards
a pt with a placenta previa should be instructed to NOT….
- have vaginal exam
- have intercourse
T/F: a parturient with a placenta previa can deliver vaginally
false
_______________ is painless vaginal bleeding
placenta previa
risk factors for placenta previa
- uterine myomectomy
- advanced maternal age
- previous C/S
- multiparity
- previous previa
how is a placenta previa confirmed?
ultrasound
how do you anesthetically manage a parturient with placenta previa
based on…
1. amount of bleeding
2. stability of mother
3. maturity of fetus (delay delivery until 37 weeks if possible)
how does a placental abruption present
- painful vaginal bleeding
or - pain with no bleeding (bc concealed behind placenta)
S/Sx: of placental abruption
- painful vaginal bleeding
- decreased BP
- decreased fetal heart tones
- uterine tenderness
- back pain
- preterm labor
risk factors for placental abruption
- HTN
- preeclampsia
- advanced maternal age
4 tobacco use - cocaine use
- trauma
- PROM
- chorio
- bleeding in early pregnancy
- previous abruption
management of placental abruption
- emergency! due to risk of death in mother and fetus
- 2 lg bore ivs
- assess volume and clotting factors
- cross match
- GETA with etomidate for C/S
- support BP with fluids and pressors
causes of uterine rupture
- trauma
- excessive fundal pressure
- extensive cervical lac
- intrauterine manipulation
- forceps use
- manual placenta extration
- version
- inappropriate use of pit
- Grand maltip
- uterine anomaly
- placenta percreta
- tumors
- fetal problems (macrosomia, malposition)
treatment for uterine rupture
- repair
- arterial ligation
- hysterectomy
common causes of POSTpartum hemorrhage
- uterine atony
- genital trauma (at birth)
- retained placenta
- placenta accreta
- uterine inversion
________________ is when the placenta is adhered to the myometrium without invasion of myometrium
placenta accreta vera
________________ placental adherence with invasion of myometrium
placenta increta
_____________ placental adherence with invasion to the uterine serosa or other pelvic structures
placenta percreta
what is the most common type of accreta
placenta accreta vera
RF for accreta
- previous C/S
- uterine trauma
- D&C following miscarriage
pt has a history of previous C/S and comes in with previa; this should draw high suspicion of what?
accreta
tx of accreta
C/S with possible hysterectomy without delay