Probable signs of pregnancy — likely but not definitive
CHOP BUGS covers the probable signs of pregnancy — signs that strongly suggest pregnancy but are not definitive proof. Positive signs (heartbeat on ultrasound, fetal movement felt by examiner, fetal parts on X-ray) confirm pregnancy. These probable signs point toward it.
C
Chadwick's sign — bluish discoloration of cervix/vagina
H
Hegar's sign — softening of lower uterine segment
O
Outlining of fetal body — palpable at later stages
P
Positive pregnancy test — hCG in urine or blood
B
Ballotement — fetus rebounds when tapped through cervix
U
Uterine enlargement — palpable above symphysis at 12 weeks
G
Goodell's sign — softening of the cervix
S
Souffle, Braxton Hicks — painless contractions at 28 weeks
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Flashcard
🃏 Pregnancy Signs
CHOP BUGS
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🃏 Answer
CChadwick's sign — bluish discoloration of cervix/vagina
HHegar's sign — softening of lower uterine segment
OOutlining of fetal body — palpable at later stages
PPositive pregnancy test — hCG in urine or blood
BBallotement — fetus rebounds when tapped through cervix
UUterine enlargement — palpable above symphysis at 12 weeks
GGoodell's sign — softening of the cervix
SSouffle, Braxton Hicks — painless contractions at 28 weeks
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Fetal Distress
Stop MOAN
Stop infusion · Mom on side · O2 administration · Assess baby and mom · Notify provider
Interventions for fetal distress during labor — act fast
Stop MOAN gives you the priority interventions when a fetus shows signs of distress during induction with uterine stimulants. Speed matters — follow this sequence immediately. Do NOT wait to notify the provider until after you have completed the other steps.
S
STOP the oxytocin/uterine stimulant infusion immediately
M
Mom turned to her side (left or right) — improves placental perfusion
O
O2 administration — supplemental oxygen via face mask
Evaluate episiotomy and wound healing after delivery
REEDA is your assessment tool for evaluating episiotomy, laceration, and C-section incision healing. Any of the first four findings may indicate infection or poor healing. Approximation (wound edges together) is the desired finding — report separation immediately.
R
Redness — beyond normal healing inflammation
E
Edema — excessive swelling around wound
E
Ecchymosis — bruising around wound edges
D
Discharge/Drainage — purulent or foul-smelling
A
Approximation — wound edges together (desired finding)
The complete postpartum assessment — check every shift in the right order
Breasts: engorgement, nipple condition, signs of mastitis (red, warm, flu-like). Uterus: fundus firm (boggy = atony → massage), midline (deviated = full bladder), descends 1 cm/day, at umbilicus day 1. Bladder: void within 4–6 hrs of delivery, distension displaces uterus → hemorrhage risk. Bowel: bowel sounds present, first BM by day 2–3 (may be painful). Lochia: Rubra (red, days 1–3), Serosa (pink, days 4–10), Alba (white, days 11–14+). Report: foul odor, heavy saturation, large clots. Episiotomy: REEDA (Redness, Edema, Ecchymosis, Discharge, Approximation). Homans sign: no longer used — check legs for unilateral swelling, warmth, redness, tenderness (DVT). Emotional: baby blues vs postpartum depression (>2 weeks, affects functioning).
LARA CROFT helps you remember the causes of abdominal pain in pregnancy — from normal labor to life-threatening emergencies. Quick recognition is critical for maternal and fetal safety.
L
Labor — normal or preterm
A
Abruptio Placenta — placenta separates early, risk of hemorrhage
R
Rupture — ectopic or uterine rupture, life-threatening
A
Abortion — spontaneous miscarriage
C
Cholestasis — liver condition causing severe itching
R
Rectus sheath hematoma — bleeding into abdominal wall
O
Ovarian tumor — may twist or rupture
F
Fibroids — uterine fibroids can cause significant pain
Screen for HELLP syndrome — a life-threatening pregnancy complication
HELLP syndrome is a severe variant of preeclampsia typically occurring in the third trimester. It involves breakdown of red blood cells, elevated liver enzymes, and dangerously low platelets. Requires immediate intervention — can be fatal to mother and baby.
Four stages every OB nurse must know — with the key assessments for each
First stage: latent (0–6 cm, irregular contractions), active (6–10 cm, stronger/closer contractions), transition (8–10 cm, most intense). Assess: cervical dilation, effacement, station, fetal heart rate, contractions. Second stage: complete dilation to birth. Push with contractions (closed glottis). Monitor fetal heart rate. Third stage: placenta delivery — within 30 minutes. Signs of separation: gush of blood, lengthening of cord, uterine fundus rises and becomes firm. Fourth stage: first 1–4 hours after delivery. Assess: fundus (firm, midline, at umbilicus), lochia, perineum, BP, HR. Most common time for postpartum hemorrhage.
FHR decelerations: Early (head compression — normal), Variable (cord compression — change position), Late (uteroplacental insufficiency — EMERGENCY).
Fetal Heart Rate Decelerations
Three deceleration patterns — one is normal, one needs repositioning, one is an emergency
Early decelerations: mirror contractions (start and end together), caused by head compression, normal — no intervention needed. Variable decelerations: abrupt drop, variable timing, caused by cord compression. Intervention: change maternal position (left lateral, knee-chest), O2, stop oxytocin, fluid bolus — may need amnioinfusion. Late decelerations: begin AFTER peak of contraction, caused by uteroplacental insufficiency (placenta not delivering enough O2 to fetus). EMERGENCY — notify provider immediately. Interventions: left lateral position, O2 10 L nonrebreather, stop oxytocin, IV fluid bolus, prepare for delivery. Persistent late decels = C-section.
Two causes of third-trimester bleeding — and the pain difference is the key
Placenta previa: placenta implants low, partially or fully covering the cervix. Painless, bright red bleeding, soft non-tender uterus. Diagnosed by ultrasound only — NEVER perform a vaginal/digital exam, which can trigger catastrophic hemorrhage. Risk factors: prior C-section, multiparity, advanced maternal age. C-section if the placenta covers the os. Placental abruption: premature separation of the placenta from the uterine wall. Painful, dark red bleeding (may be concealed), rigid board-like tender abdomen, frequent/hypertonic contractions. Risk factors: hypertension/preeclampsia, trauma, cocaine use. Fetal distress is common — an obstetric emergency that can progress to DIC and fetal death. Management depends on severity: emergency C-section if severe or fetal distress, close monitoring if mild and stable.
Previa
Painless, bright red bleeding, soft uterus
Abruption
Painful, dark bleeding (may be concealed), rigid abdomen
Diagnosis
Ultrasound only — NEVER a vaginal exam if previa suspected
DeliveryPrevia: C-section if covering the os. Abruption: emergency C-section if severe
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Preeclampsia
Preeclampsia: BP ≥140/90 after 20 weeks + proteinuria (or severe features). Severe: BP ≥160/110, HELLP syndrome, seizure (eclampsia) = EMERGENCY.
Preeclampsia and Eclampsia
The hypertensive disorder of pregnancy that can progress to life-threatening eclampsia
Preeclampsia: onset >20 weeks gestation. Criteria: BP ≥140/90 on two occasions 4 hrs apart, plus proteinuria or, without it, any severe feature. Severe features: BP ≥160/110, platelets <100,000, creatinine >1.1, LFTs 2× normal, pulmonary edema, severe headache, visual disturbances, RUQ pain. HELLP syndrome: Hemolysis, Elevated Liver enzymes, Low Platelets. Nursing: quiet, dim room (reduce stimuli), magnesium sulfate (seizure prophylaxis AND treatment — monitor for toxicity: absent DTRs, RR <12, urine <30 mL/hr), antidote = calcium gluconate. Eclampsia: grand mal seizure — give magnesium, protect from injury, O2, notify provider immediately. Delivery is the only cure.
Preeclampsia
BP ≥140/90 + proteinuria or severe features >20 wks
Normal newborn: HR 110–160, RR 30–60, Temp 36.5–37.5°C. Acrocyanosis normal. Caput succedaneum vs cephalohematoma.
Newborn Assessment
Key normal newborn findings — and the abnormalities that require intervention
Normal vitals: HR 110–160 (tachycardia if >160, bradycardia if <110), RR 30–60 (normal is fast!), Temp 36.5–37.5°C (axillary). Acrocyanosis: blue hands/feet normal for first few hours (peripheral circulation immature) — central cyanosis (lips, trunk) = abnormal. Caput succedaneum: edema crossing suture lines, present at birth, resolves in days. Cephalohematoma: bleeding under periosteum, does NOT cross suture lines, appears 24–48 hrs, resolves in weeks (risk for jaundice). Vernix (white coating), lanugo (fine hair), milia (white dots on nose) = all normal. Meconium: first stool within 24–48 hrs. Void within 24 hrs.
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Flashcard
🃏 Newborn Assessment
Normal newborn vitals and findings?
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🃏 Answer
Normal newborn: HR 110–160, RR 30–60, Temp 36.5–37.5°C. Acrocyanosis normal. Caput succedaneum vs cephalohematoma.
HR110–160 bpm normal
RR30–60 — fast is normal
AcrocyanosisBlue hands/feet — normal
CaputCrosses suture lines — resolves fast
CephalohematomaDoes NOT cross suture lines — jaundice risk
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Breastfeeding
Breastfeeding: latch = areola in mouth, not just nipple. Feed 8–12 times/24 hrs. Signs of adequate feeding: 6+ wet diapers/day by day 4.
Breastfeeding Support
NCLEX-tested breastfeeding education — latch, frequency, and signs of adequate intake
Good latch: baby's mouth covers areola (not just nipple), lips flanged outward, chin touching breast, audible swallowing, no pain. Feed on demand — 8–12 times per 24 hours (every 2–3 hrs). Duration: untimed — let baby finish the first breast, then offer the second. Signs of adequate intake: 6+ wet diapers/day by day 4, weight regain by day 10–14 (lose up to 10% initially), yellow seedy stools by day 4. Colostrum: first 3–5 days — high in antibodies (IgA), thick yellow, small amounts normal. Engorgement: frequent feeding, warm compress before feeding, cold compress after, supportive bra. Mastitis: breast infection — continue breastfeeding, antibiotics if bacterial, ice/cold compress, NSAIDs, rest.
Latch
Wide open mouth over areola — chin touching breast, not just nipple
Frequency
Feed on demand, 8–12 times per 24 hours in first weeks
Output adequacy
6+ wet diapers and 3–4 stools/day by day 4–5 = adequate intake
Engorgement
Frequent feeding, warm compress before, cold compress after
Mastitis
Flu-like symptoms + red wedge-shaped breast area; continue breastfeeding; antibiotics
Breastfeeding: latch = areola in mouth, not just nipple. Feed 8–12 times/24 hrs. Signs of adequate feeding: 6+ wet diapers/day by day 4.
LatchWide open mouth over areola — chin touching breast, not just nipple
FrequencyFeed on demand, 8–12 times per 24 hours in first weeks
Output adequacy6+ wet diapers and 3–4 stools/day by day 4–5 = adequate intake
EngorgementFrequent feeding, warm compress before, cold compress after
MastitisFlu-like symptoms + red wedge-shaped breast area; continue breastfeeding; antibiotics
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C-Section Nursing Care
Post C-section: assess uterine fundus, incision, lochia, pain, Foley output. Ambulate early (12–24 hrs) to prevent DVT.
Cesarean Section Nursing
Post-operative care after C-section — combining OB and surgical nursing care
Immediate post-op: assess as for any surgical patient PLUS obstetric assessments. Fundus: firm, midline, at umbilicus. Lochia: rubra (red, first 3 days), serosa (pink, days 4–10), alba (white, days 11+). Incision: Pfannenstiel (bikini line — horizontal). Foley catheter: usually removed 12–24 hrs post-op. Pain: multimodal analgesia — IV opioids → oral NSAIDS + acetaminophen → wean opioids. Early ambulation: 12–24 hrs — prevents DVT, ileus, pneumonia. Sequential compression devices (SCDs) until ambulating. Patient teaching: no driving for about 2 weeks or while on opioids, lift nothing heavier than baby, incision care. Next delivery: VBAC possible for some.
Airway and Breathing
Assess respiratory status — spinal anesthesia can rise and affect breathing
Fundus
Firm, midline, at umbilicus — boggy fundus requires fundal massage
Incision
Assess dressing for bleeding; staples or steri-strips common
Lochia
Should be rubra (red) — report heavy bleeding or clots larger than golf ball
DVT prevention
Sequential compression devices, early ambulation, and hydration
CORD — Call for help, O2 on, Reposition (knee-chest), Do NOT push cord back
UMBILICAL CORD PROLAPSE — OBSTETRIC EMERGENCY
Cord prolapse — the immediate nursing actions that prevent fetal death
Cord prolapse = umbilical cord slips through cervix ahead of fetus — cord compression cuts off fetal blood supply. Risk factors: rupture of membranes with high presenting part, polyhydramnios, multiple gestation, preterm, abnormal fetal presentation (breech, transverse). Signs: sudden severe variable decelerations after ROM, visible/palpable cord at vaginal opening. IMMEDIATE actions: Call for help (emergency C-section needed), position patient knee-chest or Trendelenburg to relieve cord pressure, manually elevate presenting part off cord with gloved hand (do NOT remove hand until delivery), O2 by face mask, large-bore IV, prep for emergency C-section, keep cord moist if exposed (warm saline gauze — never push cord back). This is a true obstetric emergency — every second counts for fetal survival.
C — Call for help
Emergency — call for immediate assistance and notify provider STAT
O — Oxygen
O2 via nonrebreather mask at 10 L/min for fetal oxygenation
R — Reposition
Knee-chest or Trendelenburg position to relieve cord compression
D — Do NOT push cord back
Never push cord back — maintain moisture with saline-soaked gauze
Emergency delivery
Prepare for immediate C-section; hold presenting part off cord manually
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🃏 🆘 Cord Prolapse
CORD
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🃏 Answer
CORD — Call for help, O2 on, Reposition (knee-chest), Do NOT push cord back
C — Call for helpEmergency — call for immediate assistance and notify provider STAT
O — OxygenO2 via nonrebreather mask at 10 L/min for fetal oxygenation
R — RepositionKnee-chest or Trendelenburg position to relieve cord compression
D — Do NOT push cord backNever push cord back — maintain moisture with saline-soaked gauze
Emergency deliveryPrepare for immediate C-section; hold presenting part off cord manually
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🩸 Rh Factor
RhoGAM at 28 weeks and within 72 hours of delivery — Rh- mom, Rh+ baby
Rh INCOMPATIBILITY AND RhoGAM
Rh incompatibility — when RhoGAM is given and what happens without it
Rh incompatibility occurs when an Rh-negative mother carries an Rh-positive fetus. If fetal Rh+ blood enters maternal circulation (delivery, miscarriage, amniocentesis, trauma), mother develops anti-Rh antibodies. In a subsequent Rh+ pregnancy, maternal antibodies cross placenta → hemolytic disease of newborn (HDN) = erythroblastosis fetalis — fetal anemia, hydrops, death. Prevention: RhoGAM (Rh immune globulin) — given to Rh- mothers: at 28 weeks gestation, within 72 hours of any pregnancy event (delivery, miscarriage, ectopic, amniocentesis, trauma). RhoGAM works by destroying fetal Rh+ cells before mother's immune system responds. NCLEX: mother is Rh-, baby Rh+ by cord blood typing, mom's indirect Coombs negative → give RhoGAM within 72h. If mother already sensitized (positive indirect Coombs) → RhoGAM will NOT help.
BluesDays 1–5, resolves by 2 weeks — normal, supportive care
DepressionWeeks to months — screen, refer, treat with SSRIs
PsychosisEmergency — never leave alone with infant, hospitalize
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👶 Newborn Reflexes
MSBGRT — Moro, Sucking, Babinski, Grasp, Rooting, Tonic neck — most gone by 4–6 months (Babinski by 1–2 yrs)
NEONATAL PRIMITIVE REFLEXES
Newborn reflexes — normal findings and when absence signals neurological problems
Primitive reflexes are present at birth and disappear as cortex matures. Moro (startle): arms extend then flex in response to sudden stimulus — present birth to 4–6 months. Asymmetric = brachial plexus injury. Rooting: turn head toward cheek touch — facilitates feeding, disappears 3–4 months. Sucking: suck when anything touches lips — present until 3–4 months. Palmar grasp: fingers curl around object placed in palm — disappears 3–4 months. Plantar grasp: toes curl when sole pressed — disappears 9 months. Babinski: toes fan out when sole stroked — normal until about 1–2 years, abnormal in adults (UMN lesion). Tonic neck (fencing): head turned to side, same-side arm extends — disappears 4–6 months. NCLEX: absent Moro = possible neurological damage. Babinski in adult = abnormal. Asymmetric reflexes = assess for birth injury.
M — Moro
Startle — arms extend then flex; disappears by 4–6 months
S — Sucking
Sucks when roof of mouth touched; needed for feeding
B — Babinski
Toes fan out with plantar stroke; normal in infants; abnormal in adults
G — Grasp
Fingers curl around object in palm; disappears by 3–6 months
R — Rooting
Turns head toward cheek touch; helps find nipple; disappears by 4 months
T — Tonic neck
Fencer position when head turned; disappears by 4–6 months
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Flashcard
🃏 👶 Newborn Reflexes
MSBGRT
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🃏 Answer
MSBGRT — Moro, Sucking, Babinski, Grasp, Rooting, Tonic neck — most gone by 4–6 months (Babinski by 1–2 yrs)
M — MoroStartle — arms extend then flex; disappears by 4–6 months
S — SuckingSucks when roof of mouth touched; needed for feeding
B — BabinskiToes fan out with plantar stroke; normal in infants; abnormal in adults
G — GraspFingers curl around object in palm; disappears by 3–6 months
R — RootingTurns head toward cheek touch; helps find nipple; disappears by 4 months
T — Tonic neckFencer position when head turned; disappears by 4–6 months
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🌞 Jaundice
Yellow after 24h = physiologic. Yellow in first 24h = PATHOLOGIC — investigate immediately
NEWBORN JAUNDICE AND PHOTOTHERAPY
Neonatal hyperbilirubinemia — physiologic vs pathologic and phototherapy nursing care
Jaundice (hyperbilirubinemia): yellow skin/sclera from bilirubin accumulation. Physiologic: appears after 24 hours, peaks days 3–5, resolves by 2 weeks. Due to normal RBC breakdown + immature liver. Pathologic: appears within first 24 hours — always abnormal — Rh incompatibility, ABO incompatibility, infection. Assessment: blanch skin over bony prominence — yellowness visible. Progresses head to toe (Kramer's zones). Treatment: phototherapy (bili lights). Nursing care during phototherapy: cover eyes with eye shields (corneal damage), leave skin exposed (maximum light exposure), remove for feedings (every 2–4 hours), monitor temperature (hyperthermia risk), adequate hydration (loose green stools normal — bilirubin excreted), monitor bilirubin levels. Exchange transfusion for severe cases. Kernicterus: bilirubin deposits in brain — irreversible — prevent with early treatment.
Physiologic jaundice
Appears AFTER 24 hours; peaks day 3–5; resolves by 2 weeks — normal
Pathologic jaundice
Appears WITHIN first 24 HOURS = always pathologic; investigate immediately
APGAR score is done at 1 minute (how did baby tolerate labor?) and 5 minutes (how is baby adapting?). Each category scored 0–2, max 10. Score 7–10 = normal. Score 4–6 = moderate distress. Score below 4 = severe depression. Resuscitation follows breathing and HR, not the score: PPV first; compressions if HR stays <60.
A
Appearance — blue all over=0, blue extremities=1, pink=2
P
Pulse — absent=0, below 100=1, 100 or more=2
G
Grimace — no response=0, grimace=1, cry/cough=2
A
Activity — limp=0, some flexion=1, active motion=2
A patient who is currently pregnant with her 4th pregnancy, delivered 2 full-term babies, had 1 preterm, 0 abortions, and 2 living children = G4 T2 P1 A0 L2. Gravida = all pregnancies including current. Abortion includes elective AND spontaneous (miscarriages). Living = children currently alive.
G
Gravida — total number of pregnancies (including current)
T
Term — deliveries at 37+ weeks
P
Preterm — deliveries between 20–36 weeks
A
Abortion — spontaneous or elective, before 20 weeks
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Flashcard
🃏 Obstetric History
GTPAL
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🃏 Answer
GGravida — total number of pregnancies (including current)
TTerm — deliveries at 37+ weeks
PPreterm — deliveries between 20–36 weeks
AAbortion — spontaneous or elective, before 20 weeks
LLiving — number of living children
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Congenital Infections
TORCH
Toxoplasmosis · Other · Rubella · Cytomegalovirus · Herpes
Infections That Cross the Placenta
TORCH infections can cross the placenta and cause serious fetal harm. Rubella in first trimester = highest risk (deafness, cataracts, heart defects). CMV is the most common congenital viral infection. Toxoplasmosis: avoid cat litter during pregnancy. Herpes: if active lesions at delivery → C-section.
T
Toxoplasmosis — from cat feces/undercooked meat
O
Other — syphilis, HIV, Zika, Varicella, Hepatitis B
R
Rubella — first trimester most dangerous
C
Cytomegalovirus (CMV) — most common congenital viral infection
H
Herpes simplex — active lesions = C-section delivery
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Flashcard
🃏 Congenital Infections
TORCH
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🃏 Answer
TToxoplasmosis — from cat feces/undercooked meat
OOther — syphilis, HIV, Zika, Varicella, Hepatitis B
RRubella — first trimester most dangerous
CCytomegalovirus (CMV) — most common congenital viral infection
HHerpes simplex — active lesions = C-section delivery
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Preterm Labor
Reflexes first, respirations second — magnesium sulfate toxicity progresses in that order. Calcium gluconate is the antidote.
Preterm Labor & Tocolytics
Buying 48 hours for betamethasone to work
Tocolytics: nifedipine (CCB), indomethacin (NSAID — avoid after 32 weeks, risk of fetal ductus arteriosus closure), terbutaline (beta-agonist), magnesium sulfate (also used for fetal neuroprotection against cerebral palsy). Magnesium toxicity: loss of deep tendon reflexes is the EARLIEST sign, before respiratory depression. Report RR <12/min, urine output <30 mL/hr, or absent reflexes immediately. Calcium gluconate is the antidote — keep at bedside during the entire infusion.
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Flashcard
🃏 Preterm Labor
Magnesium sulfate toxicity — order of signs and antidote?
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🃏 Answer
Reflexes first, respirations second — magnesium sulfate toxicity progresses in that order. Calcium gluconate is the antidote.
NifedipineCCB — relaxes uterine smooth muscle
IndomethacinNSAID — avoid after 32 weeks
Mag toxicityReflexes lost first, then respiratory depression
AntidoteCalcium gluconate
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Multiple Gestation
Chorionicity matters more than zygosity — monochorionic (shared placenta) twins carry TTTS risk; dichorionic twins don't.
Twin & Multiple Pregnancy
Sharing one placenta, or two? That's the question that matters
Monochorionic twins share a placenta and its blood vessels — risk of twin-to-twin transfusion syndrome (TTTS): donor twin becomes anemic/growth-restricted, recipient twin becomes volume-overloaded/polycythemic. Monochorionic twins need ultrasound monitoring roughly every 2 weeks. Identical twins can still be dichorionic depending on when the egg split — chorionicity must be confirmed by ultrasound, never assumed from zygosity. Multiples overall: higher risk of preterm labor, preeclampsia, anemia, and postpartum hemorrhage (uterine atony from overdistension).
The heel stick, done 24-48 hours after birth — too early risks a false-negative, especially for PKU.
Newborn Metabolic Screening
A tiny blood spot that catches dozens of conditions with no symptoms at birth
PKU: can't metabolize phenylalanine — lifelong low-phenylalanine diet, avoid aspartame, untreated causes intellectual disability. Galactosemia: can't metabolize galactose — STOP breastfeeding, switch to soy-based lactose-free formula. Congenital hypothyroidism: often no symptoms at birth — levothyroxine started early prevents intellectual disability/poor growth. Refusal (usually religious) requires a signed written waiver, not just verbal decline.
Folic acid prevents fetal problems — 400 mcg before conception, 600 mcg during pregnancy.
Prenatal Nutrition
Timing folic acid matters as much as the dose
Folic acid: start at least 1 month before conception, continue through first trimester — neural tube closure happens before pregnancy is often even confirmed. Iron: take at bedtime/between meals with vitamin C, not milk (impairs absorption). Weight gain by starting BMI: normal 25-35 lbs, overweight 15-25 lbs, underweight 28-40 lbs. Avoid: alcohol, high-mercury fish (swordfish, shark, king mackerel, tilefish), undercooked meat, unpasteurized dairy, raw fish. Maternal PKU requires strict phenylalanine control regardless of fetal PKU status.