OB test 2 Flashcards
Spontaneous abortion: threatened
bleeding is present with no cervical dilation, before 20 wks gestation
s/s: vaginal bleeding, abdominal cramping and back pain
Spontaneous abortion: inevitable
cervix dilates or the membranes rupture w/o delivery of the fetus or placenta
complications: vaginal bleeding and imminent spontaneous abortion
s/s: vag bleeding, abd cramping and back pain
Spontaneous abortion: missed
no expulsion of the products of conception and a closed cervix
s/s may be minimal or absent- usually discovered at an ultrasound apt. with absent fetal heart rate or growth- may still experience s/s of pregnancy
risks: infection and prolonged bleeding
-may require surgical intervention to clear it out
Spontaneous abortion: recurrent
two or more consecutive spontaneous abortions that occur before 20 wks
suspected causes: genetic abnormalities, uterine defects, endometrial problems, infection , AI diseases, hormone imbalances and unhealthy lifestyle habits.
s/s: vag bleeding, cramping , passing of tissue, emotional distress
Dx/tx: testing to evaluate underlying etiology via physical assessment
ectopic pregnancy
fertilized egg implants outside the uterus
RF: hx of ectopic pregnancy, pelvic infection, infertility tx, tubal surgery
s/s: vag bleeding, abd or pelvic pain, syncope, or shock- may be asymptomatic until rupture occurs
dx: transvaginal US and serial hog levels are used to rule out an intrauterine pregnancy
tx: indicated if abd or pelvic pain worsens, hug levels increase, or evidence of tubal rupture
- methotrexate
-surgery- laparoscopically
gestation trophoblastic disease
RF: pt < 20 yr or >40 yrs old
-abnormal growth in the uterus (molar pregnancy) that would have become the placenta, grows as trophoblastic tissue.
-no viable fetus
s/s: vag bleeding, enlarged uterus, elevated hCG levels, and hyperemesis
Dx: US
TX: D&C (dilation and curettage) followed by series of serum hCG levels to ensure no more tumors develop
-DONT CONCEIVE FOR UP TO 1 YR AFTER
-if left untreated the trophoblasts can develop into tumors (benign or malignant)
hyperemesis gravidarum
severe n/v during the first trimester- leads to electrolyte imbalances, weight loss, malnutrition and dehydration
factors: hormone changes r/t to hCG levels, decreased gastric motility, genetic predisposition, and psych factors (stress and anxiety)
complications: low fetal brith weight and preterm birth
tx: antiemetics, thiamine (vit B1) to prevent wernickes and refeeding syndrome
nursing interventions: assess severity, emotional support, education on diet and lifestyle modifications (small frequent meals, avoid spicy foods, drink fluids and rest). Meds: vitamin B6, doxylamine, benadryl, raglan, phenergan, or zofran. Inpatient: fluid/e- replacement
monozygotic multiples
identical twins: one fertilized egg splits during development
dizygotic multiples
two separate fertilized eggs
RF and complications for multiple gestation
family hx, AMA, high parity, african american, assistive reproduction technology
complications: hyperemesis gravidarum, anemia, gestational diabetes, HTN disorders, placental insufficiency, increased size of uterus, preterm labor and delivery, and twin to twin transfusion
mgmt: US for abnormalities in fluid volume, cervcal length nd getal growth
twin-to-twin transfusion syndrome
when a placenta is shared during a monochorionic pregnancy- causing an imbalance in fetal blood flow
DX: US
TX: nutritional counseling, bedrest, meds (prevention of preE, gestational diabetes, preterm labor, UTI)
cervical insufficiency
painless dilation of the cervix that often results in the inability to carry the fetus beyond the 2nd trimester
AKA: shortened or incompetent cervix
s/s: low back pain, pelvic pressure, vag bleeding or discharge
RF: hx of cervical surgery or pregnancy losses, unknown etiology
cervical cerclage
surgically placed sutures around the cervix to prevent dilation- removed as preg approaches term
placenta previa
placenta sits at the lower portion of the uterus near the internal cervical os
RF: hx of prevue, multiple gestation, multiparty, hs of uterine surgeries (c-sections included), uterine abnormalities, AMA, reproduction technology, and smoking
low lying: partially covering os, previa is used for complete coverage of os
Dx: 2nd trimester US
Complications: hemorrhage
nursing: monitor for signs of hemorrhage, advise pt to limit physical activity- bedrest, educate on what s/s to seek med attention for. No digital cervical exam, or vag intercourse due to risk for bleeding
MUST HAVE CSECTION- vag contraindicated
vasa previa
fetal blood vessels overlie the internal cervical os or lay within 2 cm of the cervix
type 1: blood vessels between the umbilical cord and the placenta run along the fetal membranes overlying the cervix- risk for those with resolved placenta previa
Type 2: succenturiate placenta- which is made up of multiple lobes ( usually two)- blood vessels connecting them
type 3: vessels pass through the membranes at the margin of the placenta
Complications: membrane rupture risks vessel rupture = fetal hemorrhage, exsanguination and asphyxia
-usually resolves prior to 28 weeks
-csection if not resolves
Nursing: antepartum NST and BPP (30-34 weeks)
abruptio placentae
part or all of placenta separates from the uterine lining
complications: significant maternal blood loss, fetal demise or maternal death
s/s: suddenly onset of severe abdominal pain, back pain, vag bleeding, painful, prolonged uterine contractions or a uterus that reminds contracted without a resting tone and changes in fetal heart rate
nursing: monitor for signs, fetal HR, hemodynamic monitoring, fluid replacement with blood if needed
placenta accreta spectrum : accreta
attachment of placental villi to the myometrium instead of just to the decidua (majority of morbidly adherent placenta MAP)
RF: hs of C-section, placenta accrete or uterine surgery, AMA, hx of infertility and pelvic radiation
s/s: hemorrhage
complications: DIC, renal failure, hemorrhage, massive transfusion and death, uterine rupture, infection
Dx: US or MRI or may be undiagnosed
-Csection delivery to reduce risks, likely followed by hysterectomy
placenta accreta spectrum : increta
penetration of placenta into the myometrium
placenta accreta spectrum : percreta
chorionic villi penetrate the myometrium and may grow into uterine serosa and surrounding tissue
Gestational hypertension
occurs after 20 wks gestation/preE
RF: obesity, null parity, hs of preE, preexisting diabetes, renal disease, and multiple gestation pre
-140/90
-nifedipine, mag sulfate, labetolol, hydralazine
preeclampsia
occurs after 20 weeks gestation and ups to 6 wks PP- vascular changes in placenta and uterus- spiral arteries in uterus dont allow for increased blood flow to the placenta
RF: nulliparity, extremes in maternal age, obesity, multiple gestation, kidney disease, chronic HTN, diabetes and hx of prE
S/s: HTN, proteinuria, edema, HA, vision changes and epigastric pain, n/v
adverse outcomes: C-section, preterm birth, low apgar scores, placental abruption, SGA infants
risk reduction: daily low dose aspirin, magnesium sulfate (reduce risk of seizures), antihypertensive tx
true tx: delivery
nursing: monitor for signs of worsening condition -> eclampsia, vitals, neuro status (LOC, reflexes, signs of mag toxicity- loss of DTR, resp depression, decreased UO) fetal monitoring, mag levels and liver and renal function tests
HELLP syndrome
Hemolysis, elevated liver enzymes, low platelet count- HTN disorder that occurs as a complication of preE
s/s:fatigue, abnormal bruising, abdominal pain (RUQ), edema, n/v, and petechiae or prolonged bleeding time
some s/s of preEclampsia: epigastric pain, HA, vision changes- they dont always develop HTN
Complications: DIC, placental abruption, ARF, pulmonary edema, hematoma of liver, retinal detachment
Tx: delivery if >34 weeks, supportive care and mgmt of possible hemorrhage
nursing: monitor vitals, symptoms worsening, meds, monitor fetal status
gestational diabetes
secondary to hormonal changes during pregnancy that lead to increased insulin resistance w/o adjusted insulin secretion- high circulating volume of glucose in the blood= hyperglycemia
-results in macrosomia
-glucose passes through placenta but maternal insulin doesn’t- baby now has to produce large amounts of insulin to address this = LGA baby
amniotic fluid imbalance: polyhydramnios
abnormally high volume of amniotic fluid
causes:maternal diabetes, anemia, or AI disorders, multiple gestation
complications: preterm birth, placental abruption, PROM, umbilical cord prolapse or fetal malpresentation
Tx: amnioreduction- amniocentesis to remove excess fluid