Exam 2 Modules 5-8 Flashcards
risk factors for pregnancy at risk
HTN, diabetes, PCOS, zika, autoimmune, nutrition, substance abuse, genetics, environment, age, parity
risk factors are synergistic
meaning more factors = more risk
pregestational risks
heart disease, substance abuse, diabetes, anemia, HIV/AIDS
gestational onset risks (risks that can arise during pregnancy)
HTN disorders, spontaneous abortions, ectopic pregnancy, Rh alloimunization, herpes, GBS +, CMV, hyperemesis gravidarum, gestational trophoblastic
cardiac changes d/t pregnancy
increased demand for cardiac output by as much as 50%
signs of cardiac disease worsening
progressive gen. edema, crackles at base of lung, rapid and weak irregular pulse, difficulty catching breath, cough, increased fatigue
Labor/delivery nursing care
EKG/FHR monitoring, O2 and pulse ox., anticoagulants for thrombus, pain/stress management to decrease HR, antibiotics to prevent endocarditis, avoid fluid overload, optimize placental perfusion
substances of abuse
alcohol, cocaine, opioids, tobacco
alcohol effects
brain and neuron development abnormalities, LBW, prematurity, FAS, leading cause of mental retardation
cocaine effects
cardiac events leading to maternal death, abruption, PROM, fetal vasoconstriction and neuroexcitation
opioid effects
withdrawal symptoms in neonate (NAS)
tobacco effects
decreased fertility, increased risk of miscarriage, previa, IUGR, long term cognitive function, increase risk of brain damage
heroin treatment
behavior and pharmacological: methadone, buprenorphine, naltrexone
4 cardinal signs of diabetes
polyuria, polydipsia, weight loss, polyphagia
type 1 diabetes mellitus
born with it; 10% of all diabetes; insulin deficient
type 2 diabetes mellitus
acquired; 90% of all diabetes; insulin resistant
gestational diabetes mellitus
onset is fist discovered during pregnancy; shortage of insulin during pregnancy (not producing as much as is needed)
pregnancy influence on diabetes
insulin decreased in first trimester and increased in second and third; increase d/t attempting to get more glucose to fetus which meaning mom has more glucose meaning insulin is higher
insulin antagonist hormones
HPL and somatotropin
maternal diabetic risks (what risks because of diabetes)
polyhydramnios, preeclampsia-eclampsia, hyperglycemia/ketoacidosis, C-section, increased susceptibility to infections, worsening retinopathy
macrosomic baby
> 4000g
fetal/neonatal diabetic risk
congenital anomalies, macrosomia, IUGR, respiratory distress syndrome
IUGR
decreased blood to placenta or fetus
high risk for gest. diabetes
over 40, family history of diabetes in first-degree relative, prior macrosomic/stillborn/malformed, obesity, PCOS, HTN, glucosuria; screen as early as possible
low risk of gest. diabetes
screen at 24-28 weeks
high gest. diabetes risk screening
> 126 mg/dL fasting; >200 mg/dL random; >6.5% ha1c
gestational diabetes screening image
target Hgb A1C
less than or equal to 6%; levels between 5-6% are associated with malformation rates of those in normal pregnancy
pregnancy complications
Rh factor, ABO incompatability, ectopic pregnancy, HSV, GBS+, preeclampsia-eclampsia, gestational trophoblastic disease
maternal alloimmunization/isoimmunization
woman’s immune system is sensitized to foreign erythrocyte surface antigens and produce IgG antibodies; Rh - mom and Rh + fetus
causes for maternal alloimmunization
blood transfusion, fetomaternal hemorrhage antepartum/intrapartum, abortion, ectopic pregnancy, placental abruption, abdominal trauma, amniocentesis/CVS, manual removal of placenta
interventions of Rh incompatibility
indirect coombs test, monitor the pregnancy, early birth, intrauterine transfusion of fetus (correct anemia), exchange transfusion (erythropoietin and iron)
if mother Rh - and baby Rh + (not sensitized)…
300 mcg Rh immune globulin (Rhogam) IM at 28 weeks (prophylactic); if baby Rh + give 300 mcg Rhogam IM w/in 72 hours
other times to give rhogam
birth to Rh + baby, spontaneous abortion, ectopic pregnancy, following invasive procedures, following maternal trauma
how does ABO incompatibility work
maternal serum antibodies cross placenta causing hemolysis of fetal RBC, anemia, bilirubinemia
parent infections
HSV (herpes simplex virus) and GBS (group beta streptococcus)
HSV risks of fetal-neonatal
spontaneous abortion, preterm labor, IUGR, neonatal infection, presence of lesion (route variable), cesarean if outbreak during labor; antiviral after 36 weeks
GBS neonatal risk
unexpected intrapartum stillbirth
HTN disorders of pregnancy
Chronic HTN, Chronic HTN w superimposed preeclampsia, preeclampsia-eclampsia, gestation HTN
HTN threshold pregnant
140/90 mmHg
Chronic HTN
> 140/90 before 20 weeks gestation and absence or stable proteinuria
Preeclampsia superimposed on chronic HTN
> 140/90 before 20 weeks gestation, new or increased proteinuria, increasing BP or HEELP syndrome
Preeclampsia
> 140/90 after 20 weeks gestation, absent or present proteinuria, can have gestational HTN
characteristics of preeclampsia
vasospasm and decreased organ perfusion (HTN), intravascular coagulation, increased permeability and capillary leakage (edema), headache
risk factors for preeclampsia
nulliparity, moms under 19 and over 30, Af. Am. and Hisp., low socioeconomic status, family history of preeclampsia, chronic HTN, DM, lupus, multigestation, gestational trophoblastic disease, fetal hydrops
eclampsia
presence of seizure or coma (multifocal, focal, generalized)
treatment of eclampsia
magnesium sulfate and antihypertensive agents
use for magnesium sulfate
not given to decrease BP, CNS depressant, seizure prophylaxis, smooth muscle relaxant, safe for fetus
HELLP syndrome
hemolysis, elevated liver enzymes, low platelet count (associated with severe eclampsia)
eclampsia increases risk of
abruptio placentae, retinal detachment, acute renal failure, cardiac failure, stroke
preeclampsia fetal risks
growth retardation, death, hypoxia
ectopic pregnancy
pregnancy outside uterine cavity (2% of all pregnancies); 95% implant in fallopian tube
risk factors for ectopic
PID or STI, prior tubal or pelvic or abd surgery, endometriosis, IVF, IUD, abnormalities of reproductive organs
ectopic pregnancy treatment
salpingostomy/salpingectomy, methotrexate, monitor blood loss, emotional support
hydatiform mole (molar pregnancy)
1:1500; increased in women with low protein intake, women >35, asians, prior miscarriage, ovulation stim.; 20% become malignant
signs/symptoms of hydatiform
rapid growing uterus, vag. bleeding, N/V, HTN, abnormal high hCG, not fetal heartbeat, US shows cysts only (no fetus)
Haydatiform management
D&C (dilation and curretage), monitor serial hCG for malignancy, no pregnancy for 1 year, emotional support
placenta previa
implantation in lower uterine segment, over or near the cervical os
placenta previa risk factors (what makes you at risk)
scarring, large placenta or multiple gestation, infertility, non-white, low socioeconomic, short interpregnancy interval, impeded endometria; vascularization (>35Y), diabetes, smoking, cocaine
placenta previa signs/symptoms
painless intermittent bleeding, US confirmation,
primary fetal risk from placenta previa
prematurity; malpresentation, fetal anemia, IUGR
primary maternal risk placenta previa
hemorrhage; lower uterine not responsive to oxytocin so use methergine
precautions when have placenta previa
avoid vaginal exam, monitor maternal vitals, continuous EFM, BPP, amniocentesis (for lung maturity)
when active bleeding placenta previa
large bore IV access, measure I&O, weigh pads, CBC and coag. studies, known blood type, keep O2 >95%, anticipate emergent C-sect.
placental abruption
premature separation of normally implanted placenta; bleeding can be concealed or external; severity dependent on degree of separation
grade 1 placental abruption
partial (or concealed); blood retroplacental; pain and abd rigidity form blood pooling
grade 2 placental abruption
Partial; marginal bleeding apparent (mild to moderate bleeding)
Grade 3 placental abruption
complete abruption (bleeding concealed or apparent); moderate to severe bleeding; high mortality rate
risk factors for placental abruption (what puts you at risk for developing)
HTN (140/90), blunt trauma to maternal abdomen, short umbilical cord, previous abruption, smoking or cocaine
placental abruption symptoms
sharp abd. pain, uterine irritability, increase resting tone, vaginal bleeding may or may not be present, dark port-wine stained amniotic fluid, FHR could be compromised, maternal tachycardia
treatment of placental abruption
assess fundal height, assess pain and tenderness, assess signs/symptoms of shock, I&O, weigh pads, continuous EFM, O2 >95%, observe for DIC and admin blood, prep for emergency delivery
polyhydramnios
excessive amniotic fluid >2000mL; associated with maternal diabetes and fetal GI abnormalities; amniocentesis if SOB appears
oligohydramnios
scanty amniotic fluid <500mL; risk for fetal adhesion and malformations; amniofusion for treatment
assessment of prenatal newborn
- anticipate what might have compromised fetus in utero
- maternal medical/prenatal history: blood type, lab values, GBS/HIV/HepB, diabetes or preeclampsia, smoking/substance abuse
assessment of intrapartum newborn
what may have occurred in labor: analgesia/anesthesia, prolonged ROM, meconium amniotic fluid, nuchal cord, forceps/vacuum, distress, precipitous birth (rapid)