Exam 2 Study Guide & Tutor Notes Flashcards
Intrauterine Growth Restriction
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Limited nutrients from the placenta to the baby
- can lead to low birthweight – < 2500 grams (5.5 lbs)
Signs & Symptoms of Preterm Labor
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- Vaginal discharge (change / increase)
- Pelvic pressure
- Mild abdominal cramps
- Constant dull back pain
- Regular contractions / ruptured membrane
What is Chorioamnionitis?
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Bacterail infection of the amniotic cavity
Tx: IV broad spectrum antibiotics & deliver baby
Signs & Symptoms of Chorioamnionitis
- Fever
- Tachycardia
- Uterine tenderness
- Foul odor amniotic fluid
What is Group Beta Strep (GBS)?
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Leading cause of perinatal infections including bacteremia, endometritis, chorioamnionitis & UTIs
* Vaginal-rectal culture is usually done between 35-37 weeks
- TX: IAP antibiotics (intrapartum antibiotic prophylaxis) to decrease risk of chorioamniotitis
- Effect on Newborn: can cause focal or systemic disease – severe respiratory distress, pneumonia, shock,& meningitis (less often to develop meningitis); osteomyelitis & septic arthritis
How can Group Beta Strep (GBS) effect a newborn?
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Can lead to severe respiratory distress, pneumonia, shock, & in rare cases meningitis
What can Group Beta Strep cause? What is the treatment? What impact does it have on the newborn?
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Can cause infections including chorioamnionitis & UTIs
- Tx = IAP (intrapartum antibiotic prophylaxis)
- Newborn Impact: severe respiratory distress, pneumonia, shock, & in rare cases meningitis
What is considered Preterm birth?
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Birth between 20 - 36 6/7 weeks
- Very Preterm – < 32 weeks
- Moderately Preterm – 32-34 weeks
- Late Preterm – 34 - 36 6/7 weeks
CAUSES:
* infection (UTIs)
* congenital structural abnormalities of the uterus
* placental causes
* maternal & fetal stress
* uterine overdistention
* allergic reaction
* decreased progesterone
* periodontal disease
What is considered Posterm Labor?
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birth at > 42 weeks (< 0.5% of mothers)
- increased maternal morbidity
- dysfunctional labor
- abnormal growth
- shoulder dystocia
- meconium stained fluid
What is external cephalic version (ECV)?
Attempt to turn the fetus from breech or shoulder presentation for birth
Amniotomy
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Artificial Rupture of Membranes (AROM)
- when the amniotic sac is ruptured with a hook
do NOT rupture membranes until baby is ≥ -3 station (-3, -2, -1, 0)
Indications for Forceps-Assisted or Vacuum-Assisted Birth
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Forceps or Vacuum may be used in…
*
- 2nd stage of labor (10 cm dilation & 100% effaced)
- HTN or cardiovascular disease
- Mom is exhausted
Must Be / Have:
* full dilation
* empty bladder
* baby’s head must be down
* ≥ 34 weeks
* ruptured membranes
What is Uterine Atony?
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failure of the uterus to contract firmly (down to its pre-pregnancy size) (hypotonia = low muscle tone of the uterus)
- most common cause of postpartum hemorrhage
Postpartum Hemorrhage
* Early PPH
* Late PPH
* Medications
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Cumulative blood loss ≥ 1000 mL or s/s of hypovolemia with in 24 hours after birth
- Early (within 24 hours of birth) – atony, bladder distention, trauma
- Late (> 24 hours or < 6 weeks) – infection, subinvolution, retained placenta, or coagulation defects
- Medications = Methergine or Hemabate (also IV oxytocin)
Define Postpartum Hemorrhage
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Cumulative blood loss ≥ 1000 mL or s/s of hypovolemia within 24 hours after birth
Early Postpartum Hemorrhage
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Within 24 hours of birth
* uterine atony
* bladder distention
* trauma (vaginal, cervical, uterine)
Late Postpartum Hemorrhage
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> 24 hours but < 6 weeks after birth
* infection
* subinvolution
* retained placenta
* coagulopathy
When can Braxton Hicks contractions begin?
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after the 4th month
Lightening
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38-40 weeks, “baby drops”
Hegar Sign
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Softening of the lower uterine segment
Ballottement
between 16-18 weeks
- passive movement of the unengaged fetus
- movability of a floating object such as a fetus
- diagnostic technique using palpation: floating object, when tapped or pushed, moves awy & then returns to touch the examiner’s hand
Quickening
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First recognition of fetal movements
- 16-20 weeks gestation (felt earlier by multiparous woman)
Goodell Sign
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Softening of cervix
- probable sign of pregnancy
- begins around 6 weeks gestation
Friability
Tissue is easily damaged
- increased in pregnancy * can result in slight bleeding after vaginal exam
Operculum
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Mucous plug
- acts as a barrier against bacterial invasion
- plug of mucous that fills the endocervical canal during pregnancy
Chadwick Sign
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violet/blue color of vaginal mucosa & cervis
- visible at approximately 6-8 weeks of pregnancy
- caused by increased vascularity
Striae Gravidarum
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remains after pregnancy
- stretch marks
Presumptive Signs of Pregnancy
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subjective changes experienced by the woman
- amenorrhea, fatigue, breast changes
List presumptive signs of pregnancy
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- amenorrhea
- fatigue
- breast changes
Probable Signs of Pregnancy
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objective changes observe / perceived by the EXAMINER & strongly suggest pregnancy
- hegar sign, ballottement, pregnancy tests
List probable signs of pregnancy
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- Hegar sign
- Ballottement
- Pregnancy test
Who reports presumptive signs of pregnancy?
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The woman
Who reports probable signs of pregnancy?
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The examiner / provider
Positive Signs of Pregnancy
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objective changes observed / perceived by the examiner that indicate PROOF OF PREGNANCY
- fetal heart tones, ultrasound
What is the difference in probable & positive signs of pregnancy?
Positive signs of pregnancy show proof of pregnancy, while probable signs strongly suggest pregnancy
List positive signs of pregnancy
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- fetal heart tones
- ultrasound
Naegel’s Rule
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1.) Calculate first day of LMP
2.) Subtract 3 calendar months
3.) Add 7 days
- Calculate estimated date of birth
- assumes woman has a 28 day cycle & that fertilization occurs on the 14th day
A woman presents to the clinic because she missed her last menstrual period (LMP) & thinks she may be pregnant. She reports fatigue, breast tenderness, urinary frequency, and nausea & vomiting in the morning. THe healthcare provider will interpret these findings as which of the following changes of pregnancy?
a.) Positive
b.) Probable
c.) Presumptive
d.) Possible
c.) Presumptive
- subjective
Chorioamnionitis
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bacterial infection of the amniotic sac
S/S: fever, foul / purulent amniotic odor, tachycardia (mom & fetus), uterine tenderness
Risk to Mom: sepsis
- Risk to BABY: respiratory distress syndrome, meningitis, cerebral palsy, pneumonia, sepsis
What is chorioamnionitis?
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bacterial infection of the amniotic sac
What are signs & symptoms of chorioamnionitis?
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- maternal fever
- foul / purulent amniotic odor
- tachycardia (mom & fetus)
- uterine tenderness
Chorioamnionitis puts a mom at risk for what?
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sepsis
Chorioamnionitis puts the fetus at risk of what?
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- RDS (respiratory distress syndrome)
- meningitis
- Cerebral Palsy
- Pneumonia
- Sepsis
Infants of Diabetic Mothers
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At risk for HYPOglycemia after birth
- glucose crosses the placenta, but insulin does not
- Baby is used to making their own insulin & after birth they aren’t receiving the glucose from the placenta but are still making insulin
- Feed within 1st hour during 1st period of reactivity before they get drowsy & monitor closely
- Also at risk for respiratory distress syndrome due to increased surfactant production
What are babies of diabetic mothers at risk of?
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HYPOGLYCEMIA after birth
- also at risk for respiratory distress syndrome because of decreased surfactant production
Preeclampsia
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HTN / proteinuria that develops after 20 weeks in normotensive women
- can also develop for first time in post-partum period
- In absence of proteinuria, preeclampsia may be defined as HTN along with:
- thrombocytopenia
- impaired liver function
- new onset renal insufficiency
- pulmonary edema
- new onset cerebral or visual disturbances
Tx: magnesium
Tx antidote: calcium gluconate
S/S of Magnesium Toxicity:
* loss of deep tendon reflexes
* respiratory depression (↓ RR)
* ↓ LOC
**
What is Preeclampsia?
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by definition
HTN + proteinuria that develops after 20 weeks in normotensive women
Can also be HTN + (one of the following):
* thrombocytopenia
* impaired liver function
* new onset renal insufficiency
* pulmonary edema
* new onset cerebral or visual disturbances
What is the treatment for preeclampsia?
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Magnesium sulfate
What is the antidote for magnesium?
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calcium gluconate
What is the treatment for preeclampsia & what is the antidote?
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Tx = magneisum
- Antidote = calcium gluconate
What are the signs & symptoms of magnesium toxicity?
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- loss of DTR (deep tendon reflexes)
- respiratory depression (↓ RR)
- ↓ LOC
Biophysical Profile (BPP)
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- Amniotic fluid volume, fetal tone, & fetal HR
- score 0-10
- 8 is great (score wise) - nothing is wrong, baby is doing well
Placenta Previa
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ATTACHMENT ISSUE
- the placenta is implanted in the lower uterine segment (should be implanted at the top)
Signs & Symptoms:
* painless bright red bvaginal bleeding during second or third trimesters
Exam Findings: soft, relaxed, non-tender uterus with normal tone
What is placenta previa?
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Placenta does not attach in the correct place
- attaches in the lower uterine segment
What are signs & symptoms / exam findings of placenta previa?
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- Painless bright red vaginal bleeding
- Abdominal Exam: soft, relaxed, non-tender uterus w/ normal tone
Placental Abruption
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Premature separation / detachment of part or all of the placenta from the uterus
Signs & Symptoms:
* vaginal bleeding
* abdominal pain
* uterine tenderness
* contractions
* board-like abdomen
What is placental abruption?
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Premature separation or detachment of part or all of the placenta from the uterus
Signs & Symptoms of Placental Abruption
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- vaginal bleeding
- abdominal pain
- uterine tenderness
- contractions
- board-like abdomen
How can you differentiate between placental abruption & placenta previa?
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bleeding type, uterine tone, & absence or presence of pain
Placenta Previa
* painless vaginal bleeding
* soft, relaxed, non-tender uterus w/ normal tone
Placental Abruption
* vaginal bleeding w/ pain (contractions / abdominal pain)
* uterine tenderness
* board-like abdomen
What is a cerclage?
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A suture is placed around the cervix to hold it closed when premature dilation occurs
- A suture is placed around the cervix beneath the mucosa to constrict the internal os of cervix
What is cervical insufficiency? What is the interprofessional care management & the follow up care for cervical insufficiency?
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Passive, painless dilation of the cervix leading to recurrent preterm births during the second trimester in absence of other causes
Tx / Interprofessional Management:
* cerclage – suture the cervix closed when premature dilation occurs due to weakness
Follow Up Care
* validity of bed rest has not been scientifically proven
* Progesterone therapy may be recommended for some women
* Watch for & report signs of perterm labor, rupture of membranes, & infection
What is Cervical Insufficiency?
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passive, painless dilation of the cervix
- leads to recurrent preterm births during second trimester in absence of other causes
What is the treatment of choice for cervical insuffiency? What is the follow up care?
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Cerclage (suture the cervix closed)
Follow Up Care: watch for & report signs of preterm labor, rupture of membranes, & infection
- validity of bed rest has not been scientifically proven
- progesterone therapy may be recommended for some women
Gestational Diabetes
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Risk Factors
* family hx of diabetes
* previous pregnancy that resulted in unexplained stillbirth or the birth of a malformed or macrosomic fetus
* obesity, HTN, glycosuria, maternal age > 25 years
* more than half of women with GDM have none of these risk factors
diagnosed during second half of pregnancy
What are risk factors for developing gestational diabetes?
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- family hx of DM
- previous pregnancy that resulted in an unexplained stillbirth or the birth of a malformed or macrosomic fetus
- obesity, HTN, glycosuria, & maternal age > 25 years
more than half of women with GDM have none of these risk factors
A patient is diagnosed with gestational hypertension & is receiving magnesium sulfate. Which findings would the nurse interpret as indicating a therapeutic level of medication?
a.) Urinary output of 20 mL per hour
b.) Respiratory rate of 10 breaths per minute
c.) Deep tendon reflexes 2+
d.) Difficulty in arousing
c.) deep tendon reflexes 2+
With magnesium sulfate, deep tendon reflexes of 2+ would be considered normal & therefore a therapeutic level of the drug.
- urinary output of less than 30 mL, a respiratoyr rate of less than 12 breaths/minute, & a diminished level fo consciousness would indicate manesium toxicity
When is gestational diabetes diagnosed?
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Second half of pregnancy
Fetal Fibronetic (fFN) test
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Used to predict who will NOT go into preterm labor because its negative predictive value is high
- fFN is a glycoprotein “glue” found in plasma & produced during fetal life
- women with a negative test have a less than 1% chance of giving birth in 2 weeks
Shoulder Dystocia
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- suprapubic pressure
- position change
- turtle sign
- Risk for diabetic mothers due to macrosomia
Cord Prolapse
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- Position change to take pressure off the cord
- Prepare for c-section
Early Postpartum Hemorrhage
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within 24 hours of birth
Causes:
* uterine atony (uterus doesn’t contract / shrink back to pre-pregnancy size)
* distended bladder
* trauma
Late Postpartum Hemorrhage
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more than 24 hours but less than 6 weeks after birth
Causes:
* infection
* subinvolution (uterus does not go down to prepregnancy size
* retained placenta
Induction of Labor
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chemical or mechanical initiation of uterine contractions before spontaneous onset (for the purpose of bringing about birth)
Augmentation of Labor
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Stimulation of uterine contractions AFTER labor has started spontaneously & progress is unsatisfactory
- Common Methods:
- oxytocin
- amniotomy (breaking the water)
The nurse is developing a plan of care for a woman who is pregnant with twins. The nurse includes interventions focusing on which of the following because of the woman’s increased risk?
a.) Oligohydramnios
b.) Preeclampsia
c.) Post-term labor
d.) Chorioamnionitis
b.) Preeclampsia
Oligohydramnios = too little amniotic fluid
Maternal substance use
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- Tobacco = growth restriction
- Cocaine / Amphetamines = placental abruption
- Alcohol = cognitive impairment
How does maternal use of tobacco impact the fetus?
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Growth restriction
How does maternal cocaine / amphetamine use impact the fetus?
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placental abruption
How does maternal alcohol use impact the fetus?
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cognitive impairment
Hypospadias
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urethra is on VENTRAL aspect (underside / bottom) of the penis
Epispadias
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urethral opening is on the DORSAL aspect (on top) of the penis
A 1-day-old neonate, 32 weeks gestation, is in an overhead warmer. The nurse assesses the morning axillary temperature as 96.9 F. Which of the following could explain this assessment finding?
a.) This is a normal axillary temperature for a preterm neonate.
b.) Axillary temperatures are not valid for preterm babies.
c.) The supply of brown adipose tissue is incomplete.
d.) Conduction heat loss is pronounced in the baby.
c.) The supply of brown adipose tissue is incomplete.
Which vital sign deviates from the normal reading as a result of puerperal sepsis?
a.) Temperature
b.) Respirations
c.) Blood pressure
d.) Pulse
PowerPoint Question
a.) Temperature
- Fever is > 100.4 F
A number of changes in the integumentary system occur during pregnancy. Which change persists after birth?
a.) Epulis
b.) Chloasma
c.) Striae gravidarum
d.) Telangiectasia
PowerPoint Question
c.) Striae gravidarum
With regard to follow-up visits & the physical examination for women receiving prenatal care, nurses should be aware that…
a.) The interview portions become more intensive as the visits become more frequent over the course of the pregnancy.
b.) Monthly visits are scheduled for 1st trimester, every 2 weeks for 2nd trimester, & weekly for 3rd trimester.
c.) During the abdominal examination, the nurse should be alert for supine hypotension.
d.) For pregnant women, a systolic BP of 130/80 is sufficient to be considered hypertensive.
PowerPoint Question
c.) During the abdominal examination, the nurse should be alert for supine hypotension.
Supine hypotension: occurs when a pregnant person’s uterus compresses the inferior vena cava & aorta while they are lying on their back
Gestational Hypertension
- onset of HTN w/out other findings after 20 weeks
- BP > 140/90 (resolves after giving birth)
Care of Macrosomic Infant
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Large babies (macrosomic) are at risk for:
- Hypoglycemia
- Polycythemia (RBCs)
- Birth injuries (shoulder dystocia)
- Metabolic Issues (obesity, diabetes, cardiovascular disease)
Women with hyperemesis gravidarum…
a.) Are a majority, because 80% of all women suffer from it at some time.
b.) Have vomiting severe & persistent enough to cause weight loss, dehydration, & electrolyte imbalance.
c.) Need IV fluid & nutrition for most of their pregnancy.
d.) Often inspire similar, milder symptoms if their male partners & mothers
PowerPoint Question
b.) Have vomiting severe & persistent enough to cause weight loss, dehydration, & electrolyte imbalance.
Ectopic Pregnancy
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Fertilized ovum is implanted OUTSIDE the uterine cavity
Signs & Symptoms:
* abdominal pain
* delayed menses
* abnormal vaginal bleeding (spotting)
Gestational Diabetes - Preconception Guidance
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- Frequent monitoring in pregnancy
- Primary Goal: achieve & maintain constant euglycemia
- diet, exercise, insulin therapy, self monitoring blood glucose, urine testing
5 Stages of Grief
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1.) Denial
2.) Anger
3.) Bargaining
4.) Depression
5.) Acceptance
Perinatal Loss
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Loss associated with childbearing
- miscarriage
- fetal diagnosis
- pregnancy termination
Survivors Guilt
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A feeling of guilt about going on with life after other people close to you have died
Care of NAS babies
* neonatal abstinence syndrome
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- keep lights dim
- TV & radio off
- Use soft, quiet voices
- Sensitive to stimulation
How to calculate newborn weight loss percentage
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(weight at birth - current weight) / birth weight x 100
Can also do:
100 - ( current weight / birth weight)
- 100 - (3000/3500) = 0.857
- 0.857 = 85.7
- 100 - 85.7 = 14.3
Meds for hypertension during pregnancy
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Labetalol
* beta blocker to decrease BP
Hydralazine
* IV only
* monitor FHT
* mom in L lateral position
Nifedipine / Procardia
* calcium channel blocker to decrease contractions
Magnesium sulfate for severe preeclampsia (not necessarily for BP)
What are the 3 most common medications used to control hypertension during pregnancy? (NOT for preeclampsia)
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- Labetalol
- Hydralazine (IV only)
- Nifedipine / procardia
What are the 3 Tocolytic drugs & what are they used for?
Tocolytic = inhibit contractions
Not My Time
* nifedipine
* magnesium sulfate
* terbutaline
What medications are used for postpartum hemorrhage?
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- Cytotec (misoprostol)
- Hemabate – do NOT use w/ asthma
- Methergine – do NOT use w/ HTN
- Oxytocin / pitocin
What is methotrexate used for?
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used for the medical treatment of ectopic pregnancy