Exam 4 Flashcards
(129 cards)
Chronic HTN
SBP >140 or DBP >90.
Pts <20 wks OR hx HTN before pregnancy.
Gestational HTN
SBP >140 or DBP >90.
>20 wks
Absence of proteinuria or symptomatic.
Pre-eclampsia Definition and risk factors
SBP >140 or DBP >90.
>20 wks
Proteinuria w/ or w/o sx
OR s/s & lab abnormalities w/o proteinuria.
Risk Factors: Hx pre-eclampsia, multifetal gestation, chronic HTN, T1 or T2DM, renal disease, autoimmune disease, nulliparity, obesity, family hx, age > 35yrs, African American, IVF, previous adverse pregnancy outcome, >10yr pregnancy interval
HELLP Syndrome Def and risk factors
Assoc w/ pre-eclamptic mothers .
Hemolysis (Breakdown RBCs)
Elevated Liver enzymes
Low Platelet Count
Increased risk for: Cerebral hemorrhage, retinal detachment, liver rupture, DIC, placental abruption, eclampsia, renal failure, pulmonary edema, maternal death
Severe HTN/HTN Crisis;
- Definition
- Sx
SBP >160 and/or DBP >110 (repeat pressures) Thrombocytopenia (Plt <100) Impaired LFTs (RUQ pain, elevated LFTs) Renal insufficiency (Cr >1.1) Pulmonary edema HA unresponsive to tx Visual disturbances
Pre-eclampsia Mgmt (Outpatient vs inpatient)
Outpatient: OB visits 1-2x/wk, quiet environment, intermittent bedrest, hydrate, take BP/wt daily, urine dipstick, fetal kick count
Inpatient: Freq assessments, bedrest, seizure precautions, Betamethasone
Magnesium Sulfate;
- Indications
- Assessments
- S/s toxicity
Prevention/tx eclamptic seizures
Monitor mg levels
Assess DTRs, ankle clonus
Calcium Gluconate for mg toxicity
S/s toxicity: flushing, sweating, hypotension, cardiac/CNS depression
Hydralazine (Apresoline);
- Indications
- Adverse effects
Improve perfusion to renal, uterine, cerebral areas
Reduce BP
D/c slowly to prevent rebound HTN
Adverse effects: palpitations, HA, tachycardia, anorexia, n/v/d
Labetolol (Normodyne);
- Indications
- Adverse effects
Reduce BP, lowers BP w/o decreasing maternal HR, CO
Adverse effects: gastric pain, flatulence, constipation, dizziness, vertigo, fatigue
Nifedipine (Procardia);
- Indications
- Adverse effects
Reduces BP, stops pre-term labor
Adverse effects: Dizziness, peripheral edema, angina, diarrhea, nasal congestion, cough
Placental Abruption;
- Definition
- Causes, risks
MEDICAL EMERGENCY
- Early separation of placenta after 20w before birth
- Bleeding between decidua & placenta
- High mortality rate; fetal 40%, mother 5%
- Maternal vessels tear away from placenta & bleeding occurs between uterine lining & maternal side of placenta
- Blood accumulates & pushes uterine wall & placenta further apart
- Abruption continues, loss of placental function results in fetal hypoxia & eventually fetal death
Most causes: originate from maternal HTN & pre-eclampsia
Maternal risks: obstetric hemorrhage, blood transfusions, hysterectomy, DIC
Placenta Previa;
- Definition
- Causes
“Afterbirth first”
- Placenta inserted wholly or partly into lower uterine segment, partially or completely covering internal cervical opening
- Risk for prenatal & postpartum hemorrhage
- Increased risk after multiple c-sections
-Caused by: uterine endometrial scarring or damage into upper segment, incites placental growing in unscarred lower segment
Placenta Previa vs Placental Abruption;
- Onset
- Bleeding
- Pain/uterine tenderness
- FH tone
- Shock
- Delivery
Previa;
- Onset- 2nd trimester
- Bleeding- Mostly external, small to profuse amt, bright red
- Pain/uterine tenderness- Usually absent, uterus soft
- FH tone- Usually normal
- Shock- Not present unless excessive bleeding
- Delivery- May be delayed depending on size of fetus & amt of bleeding
Abruption;
- Onset- 3rd trimester
- Bleeding- Concealed, external dark hemorrhage, bloody amniotic fluid
- Pain/uterine tenderness- Usually present, irritable uterus
- FH tone- Irregular or absent
- Shock- Mod to severe depending on external hemorrhage
- Delivery- Immediate, by C-section
Postpartum Body Changes
- Blood from uterus/placenta returns to central circulation
- Extracellular fluid moves into vascular compartments
- CO increases
- Diuresis & diaphoresis occur
- Increased risk for clots
- WBC remain elevated
- HCT low but stable
- Tachycardia/low BP early sign postpartum hemorrhage, infection, dehydration
- BP increase w/ HA is pre-eclampsia postpartum
- Diastis recti abdominis: left/right abd muscles most outward layer separate
- Lactogensis: onset milk secretion, triggered by delivery of placenta d/t decreased estrogen/progesterone w/ prolactin
- Breast tissue larger, firmer, more tender before milk arrives
Postpartum Assessment
BUBBLE
Breasts Uterus Bowels Bladder Lochia (vaginal d/c after birth) Episiotomy/laceration/caesarean incision
Breast assessment;
- Engorgement
- Mastitis
Inspect size, symmetry, engorgement, redness
Check nipples cracks, redness, bleeding, d/c
Palpate nodules, masses, areas warmth
Feeding challenges?
Manually express milk to assist w/ latching
Breast feeding women-Engorgement relived by: freq emptying, warm showers/compresses before feeding, cold showers/compresses between feedings
Non breast feeding women-Engorgement: Wear tight supportive bras, ice, avoid breast stimulation
S/s mastitis: flu like sx, tender, hot, painful areas, inflamed breast tissue, tenderness, cracked skin around nipple, breast distention w/ milk, hx clogged ducts/poor feeding
Mastitis tx: breast emptying, massage breasts before feeds, ABX, cold/warm compresses
Uterus assessment
- HOB <30 degrees
- Fundal massage if boggy, should be midline/firm
- Empty bladder, can affect uterine location
- Quantified blood loss if still bleeding
- Fundus cont descend into pelvis approx 1cm or finger/day, should be nonpalpable by 14 days post partum
Bowel assessment
Bowel sounds Return of bowel function Flatus Color/consistency of stool High fiber, fluids, ambulation
Bladder assessment;
-S/s UTI
- Return of urination, within 6-8 hrs of delivery
- Approx 8 hours after delivery measure amt urine each void
- Minimum 150ml/void. Less = urine retention d/t decreased bladder tone post partum
- S/s UTI: freq urination, bladder spasm, cloudy urine, urgency, dysuria
- Bladder should be nonpalpable above pubis
Lochia assessment;
-Types of Lochia
- Saturating one pad <1 hr, constant trickle, large lochia/clots could indicate serious complications
- How often pad changed?
- Color, flow, clots present
- Quantified blood loss
Lochia Rubra: Bright red bleeding/clots 1-3 days
Lochia Serosa: Pink/brown bleeding for 4-10 days
Lochia Alba: Whitish/yellow d/c for 10-14, could last up to 6 weeks
Episiotomy;
- REEDA
- Interventions
Redness Edema Ecchymosis Discharge Approximation
- Redness normal
- Ice packs 12-24 hrs
- Sitz baths
- No d/c, wound edges approximated
- Kegel exercises, squeezing glutes w/ position changes
Postpartum hemorrhage;
- Causes
- Assesments
- Mgmt
Causes:
- Grand multiparity
- Overdistention uterus
- Rapid, precipitous, prolonged labor
- Retained placenta
- Placenta previa or abruption
- Meds (Tocolytics, oxytocin)
- OR procedures (C-sec, vacuum extraction)
- Coagulation defects
Assessments:
- Risk factors
- Uterine tone, vaginal bleeding
Mgmt:
- Fundal massage w/ HOB down
- Measure quantified blood loss
- Admin uterotonic
- Start 2nd 18G IV
- Fluid admin
- Monitor s/s of shock; ER measures of DIC occurs
Oxytocin
Begin or improve contractions during labor, reduce bleeding after childbirth
Methergine
- Prevent or treat bleeding from the uterus after childbirth
- Contraindicated HTN/toxemia
- Monitor BP, HR, uterine response, change in vitals, freq periods of uterine relaxation, character/amt of vaginal bleeding
- NOT safe breastfeeding
- DONT use IV reg d/t increased risk severe HTN/stroke