High Risk Neonates
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Transcript of High Risk Neonates
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HIGH RISK NEONATESPresented by Ann Hearn RNC, MSN
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A High-Risk Newborn is one who is susceptible to illness (morbidity) or even death (mortality) due to: dysmaturity immaturity physical disorders complications of birth
In most cases, the infant is the product of a pregnancy involving one or more predictable risk factors, including the following:◦ Low socioeconomic level of the mother, poor nutrition◦ Exposure to environmental dangers such as toxic chemicals◦ Preexisting maternal conditions such as heart disease,
diabetes◦ Obstetric factors such as age or parity, other premature births◦ Medical conditions related to pregnancy such as hypertension,
Premature rupture of membranes, infection, etc.
THE HIGH RISK NEWBORN
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CLASSIFICATION OF HIGH RISK NEWBORNS
Gestational Age
Preterm (Late Preterm) Term Postterm
Gestational Age & Birth Weight
SGA AGA LGA
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Ballard Scale or Dubowitz scale Neuromuscular characteristics Physical Characteristics
Scoring of all characteristics determines the gestational age
ASSESSMENT OF GESTATIONAL AGE
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ASSOCIATED COMPLICATIONS OF:
Asphyxia Aspiration syndrome Hypothermia Hypoglycemia Polycythemia
Congenital malformations
Intrauterine infections
Continued growth difficulties
Cognitive difficulties
SGA IUGR
Nursing Interventions: Monitor heart rate, respiratory rate, temperature and blood glucose.
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Born before 37 weeks gestation
The Premature Infant
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT
Respiratory Thermoregulation Digestive Renal (fluid & electrolyte) Infection Pain
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Respiratory
Insufficient production of surfactant Immaturity of alveolar system Immaturity of musculature Respirations 40-60, shallow, irregular, usually
diaphragmatic
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Respiratory Nursing Interventions
Assess for S/S respiratory distress Cyanosis Retractions Expiratory grunting Nasal flaring Apnic episodes
Maintain airway Administer O2 Monitor O2 saturation Monitor heart/respiratory rates
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o Positioning◦ Position with head slightly elevated and neck slightly extended
◦ Side-lying or prone
SuctioningOnly use when necessaryBe gentle so as not to damage fragile mucus membranes
NURSING CARE
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Thermoregulation
Increased body surface area compared to body mass
Decreased brown fat Thin skin Vessels close to skin Decrease sub-q fat Lack of flexion
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Axillary temperature <36.3 or >36.9 degrees C
Abdominal skin temperature <36 or >36.5 degrees C
Poor feeding or feeding intolerance Irritability Lethargy Weak cry or suck Decreased muscle tone Cool skin temperature Skin pale, mottled, or acrocyanotic Signs of hypoglycemia Signs of respiratory difficulty Poor weight gain
SIGNS OF INADEQUATE THERMOREGULATION
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT
Thermal Neutrality – Nursing Interventions Incubator or radian warmer Warm surfaces Warm humidified oxygen Warm ambient humidity Warm feedings Keep skin dry and head covered
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ISOLETTE/ RADIANT or INCUBATOR OPEN WARMER
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FLUID AND ELECTROLYTE BALANCEDehydration Urine output <2 ml/kg/hour Urine specific gravity >1.01 Weight loss greater than
expected Dry skin and mucous
membranes Sunken anterior fontanel Poor tissue turgor Blood: Elevated sodium,
protein, and hematocrit levels
Overhydration Urine output >5 ml/kg/hour Urine specific gravity
<1.002 Edema Weight gain greater than
expected Bulging fontanels Moist breath sounds Difficulty breathing Blood: Decreased sodium,
protein, and hematocrit levels
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Hydration – Nursing Interventions
Daily weights Monitor I&O
Parental fluids Feedings Oral medications 1gm = 1ml urine Regurgitation/emesis Stool
Accurate IV rates, assess site Accurate OGT feedings Monitor urine pH & specific gravity
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Renal
Decreased glomerular filtration rate Inability to concentrate urine or dilute
urinePoor electrolyte regulation
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Skin
Fragile Permeable Easily damaged
Nursing interventions Little use of tape and back with cotton Rinse disinfectants off with water Assess skin for infection Avoid pressure points Reposition frequently as tolerated
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Lack of passive immunity from mother; deficient placental transmission.
Inability to produce own antibodies - immature system.
Exposure to procedures and prolonged hospital stay.
Skin is thin and offers little protection from disease causing organisms.
PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT - IMMUNE SYSTEM
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Prevention of Infection – Nursing
Interventions Initial scrub / strict hand washing
Visitors & staff Reverse isolation Single infant equipment Short / no artificial nails Maintain sterile technique
IV start and dressing changes Procedures
Clean incubators weekly Position changes; use of sheepskin Judicious use of tape on skin
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Signs and Symptoms of Infection
Behavioral changes Physiological changes
Tonus Color Temperature Skin Feeding Hyperbilirubinemia Heart rate Respiratory rate
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??? WHAT ARE THE SIGNS AND SYMPTOMS OF PAIN IN A PREMATURE INFANT??? High-pitched, intense, harsh cry Whimpering, moaning “Cry face”, grimacing, furrowing of brow Eyes squeezed shut Mouth open Tense, rigid muscles or flaccid muscle tone Rigidity or flailing of extremities Color changes: Red, dusky, pale Increased or decreased heart rate and
respirations, apnea Decreased oxygen saturation Increased blood pressure Sleep-wake pattern changes
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NURSING CARESwadd
lePacife
rMedications
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Changes in Oxygenation: Respirations Pulse Blood pressure Oxygen saturation levels Color Sneezing, coughing, hiccupping
Behavior changes Posture Facial expression Gaze Regurgitation Yawning Fatigue
SIGNS OF OVERSTIMULATION IN PRETERM INFANTS
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Nutrition
Poor suck and swallow reflex Decreased gag reflex Relaxed cardiac sphincter Small stomach capacity Intolerance of fats Immature absorption of nutrients
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Pre-feeding assessment:
Measure abdominal girth Bowel sounds Gastric residual Sucking and gag reflexes
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NUTRITION Feeding methods:
Parenteral PO NGT Direct Breastfeeding
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PHYSIOLOGIC CHALLENGES OF THE PREMATURE INFANT Facilitating Parent-Infant Attachment
Prepare parents for first visit Establish safe/trusting environment Encourage visitation Involve in care taking Repeat explanations Promote touching, talking, rocking, cuddling Refer to infant by name Allow parents to phone as desired
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COMMON COMPLICATIONS OF PRETERM INFANTS
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RESPIRATORY DISTRESS SYNDROME
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RESPIRATORY DISTRESS SYNDROME - RDS Pathophysiology
Primary absence, deficiency or alteration in the production of surfactant
Surfactant, atelectasis = lack of gas exchange
Leads to hypoxia and acidosis which further inhibit surfactant production and causes pulmonary vasoconstriction.
Clinical manifestations: Cyanosis Tachypnea Nasal flaring Retracting Apnea
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RESPIRATORY DISTRESS SYNDROME-SURFACTANT REPLACEMENT THERAPY Surfactant preparation can be lifesaving and
reduces complications, such as pneumothorax.
Administered through an endotracheal tube
Surfactant treatments may be repeated several times during the first days until respiratory distress syndrome resolves.
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RESPIRATORY DISTRESS SYNDROME-NURSING INTERVENTIONS Maintain airway, oxygenation,
ventilation Supplemental oxygen:
Nasal prongsOxyhood
Continuous positive airway pressure (CPAP)
Intubation with endotracheal tube Maintain thermoregulation
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RESPIRATORY DISTRESS SYNDROME-NURSING INTERVENTIONSNutrition Support Newborns with RDS may fed by the following
means: Tube feeding—a tube is inserted through
the baby's mouth and into the stomach Parenteral feeding—nutrients are delivered
directly into a veinSupport to Parents
Allow parents to hold and feed when possible.
Assist to decrease their fears
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PERIVENTRICULAR-INTRAVENTRICULARHEMORRHAGE (PIVH)
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PERIVENTRICULAR-INTRAVENTRICULARHEMORRHAGE Rupture of fragile blood vessels around the
ventricles of the brain Usually associated with hypoxia
Diagnosed via cranial ultrasound
Signs – lethargy, poor muscle tone, decreased reflexes, seizures, apnea or cyanosis, full or bulging fontanels
Nursing Care – daily measure FOC, observe for changes in LOC
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RETINOPATHY OF PREMATURITY
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RETINOPATHY OF PREMATURITY Contributing factors:
Formation of immature blood vessels in the retina constrict and become necrotic
Most common in infants < 28 weeks gestation Also associated with O2 therapy
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RETINOPATHY OF PREMATURITY Nursing Interventions to Prevent ROP
Administer O2 in concentration ordered Ensure proper ventilatory settings
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NECROTIZING ENTEROCOLITIS
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NECROTIZING ENTEROCOLITIS NEC - Inflammatory disease of the
intestinal tract caused by ischemia, infection, and/or prematurity of the gut. NEC develops when there is asphyxia or hypoxia in
which cardiac output tends to be directed more toward the heart and brain and away from the abdominal organs.
The intestinal cells become ischemic and damaged and stop secreting protective mucus infection occurs.
Perforation may occur with overwhelming sepsis.
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NECROTIZING ENTEROCOLITISSIGNS AND SYMPTOMS Early:
Increase in gastric aspirate - >5-25 ml. Increase in abdominal girth Decrease bowel sounds, abdominal
tenderness or rigidity of abdominal wall. Subtle:
Lethargy, sudden listlessness, temperature instability, decrease urine output, occult blood in stools, poor color, and apneic periods.
Dramatic: Massive abdominal distention, vasomotor
collapse.
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NECROTIZING ENTEROCOLITISTREATMENT AND NURSING CARE Surgery: Resection of necrotic sections
and possible temporary colostomy. This allows bowel to recover.
Medical: NPO with NG tube. Peripheral or central hyperalimentation Antibiotic therapy. Continue to monitor for changes in condition. Gradually introduce oral feedings
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POST-TERM NEWBORNGREATER THAN 42 WEEKS GESTATION
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POST MATURE INFANTo Physical
manifestations: Dry, cracking,
parchment-like skin
Reduced subq tissue – Skin appears loose
No vernix or lanugos Long fingernails Profuse scalp hair Long, thin body appearance Often meconium stained
skin, cord and nails
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POST MATURE INFANT Complications of post term:
Hypoglycemia Meconium aspiration Congenital anomalies Seizure activity Cold stress
Nursing considerations Monitor blood sugars per protocol Evaluate respiratory status Assess for seizure activity Treat cold stress.
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SMALL FOR GESTATIONAL AGEBELOW THE 10TH PERCENTILE
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SGA - RISK FACTORS: Maternal factors:
◦ High blood pressure. ◦ Chronic kidney disease. ◦ Advanced diabetes. ◦ Heart or respiratory disease. ◦ Malnutrition, anemia. ◦ Infection. ◦ Substance use (alcohol, drugs); Cigarette smoking.
Factors involving the uterus and placenta: ◦ Decreased blood flow in the uterus and placenta. ◦ Placental abruption (placenta detaches from the uterus). ◦ Placenta previa (placenta attaches low in the uterus). ◦ Infection in the tissues around the fetus.
Factors related to the developing baby (fetus): ◦ Multiple gestation (twins, triplets, etc.). ◦ Infection. ◦ Birth defects. ◦ Chromosomal abnormality.
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COMPLICATIONS OF THE SGA NEWBORN Asphyxia
Aspiration syndrome
Hypothermia
Hypoglycemia
Polycythemia
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LARGE FOR GESTATIONAL AGEGREATER THAN 90TH PERCENTILE
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What condition is associated with the newborn being LGA?
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COMPLICATIONS OF THE LGA NEWBORN Birth Trauma
Increase of Cesarean births
Hypoglycemia
Polycythemia
Hyperviscosity
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ASPHYXIA Lack of oxygen and increase of carbon
dioxide in the bloodOccurs in utero or after birth
S/S asphyxia after birth:Cessation of respirations and rapid fall in
heart rate Interventions:
Primary apnea: stimulation and O2Secondary apnea: positive pressure
ventilation &/or chest compressionsNaloxone 0.1mg/kg IM (if narcotics given to
expectant mother shortly before birth)
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MECONIUM ASPIRATION SYNDROME
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MECONIUM ASPIRATION SYNDROME Meconium stained amniotic fluid
Aspirated into the trachobronchial tree Occurs either in utero or after birth with the first
breaths.
Meconium in the lungs causes air to become trapped and results in alveoli over-distension and rupture.
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MECONIUM ASPIRATION SYNDROME Measures for Prevention of Meconium Aspiration
After delivery of the infant’s head but before shoulders Suction oropharynx and nasopharynx (no longer
recommended)
After delivery of the infant’s body
Crying Not crying
- Stimulate - Do not stimulate- Suction with - Visualize the vocal cords and bulb syringe provide direct suction with
endotracheal tube, then stimulate.
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MECONIUM ASPIRATION SYNDROMEIntubation Suction
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MECONIUM ASPIRATION SYNDROME Nursing Interventions:
Maintain adequate oxygenation and ventilation Regulate temperature Accurate IV fluid administration Assess for hypoglycemia Administer antibiotics Provide caloric requirements Provide support care if on ECMO
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Nursing Interventions: Maintain adequate oxygenation and ventilation Regulate temperature Accurate IV fluid administration Assess for hypoglycemia Administer antibiotics Prevent caloric requirements Provide support care if on ECMO
MECONIUM ASPIRATION SYNDROME
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HYPERBILIRUBINEMIA
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HYPERBILIRUBINEMIA Pathophysiology
Bilirubin is released in serum when RBC lyse Conjugation in liver = water soluble & excretable Rate & amount of conjugation dependent upon:
Rate of hemolysis Bilirubin load Maturity of liver Presence of albumin-binding sites
Hyperbilirubinemia occurs when the body cannot conjugate the bilirubin released into the serum.
Results in jaundice where the unconjucated bilirubin is deposited in the tissue.
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HYPERBILIRUBINEMIA Pathophysiology
Unconjugated bilirubin is produced by the break-down destroyed RBC’s.
Unconjugated bilirubin is normally transferred in the plasma firmly bound to albumin to the liver where conjugation occurs.
Conjugated bilirubin is water soluble and can then be excreted into the bile and eliminated with the feces.
Unconjugated bilirubin is not in excretable form and remains in the circulation causing problems.
Hyperbilirubinemia occurs when the body cannot conjugate the bilirubin released into the serum.
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CAUSES OF HYPERBILIRUBINEMIA Hemolytic disease (Rh and ABO
incompatibility) Extravascular bleed (cephalhematoma) Bilirubin conjugation defects (breastmilk
jaundice, asphyxia) Hypoalbumin Physiologic jaundice (occurs after the
first 24 hours of birth. Mainly due to immature liver and lack of glucoronyl transferase).
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HYPERBILIRUBINEMIA Hemolytic Disease (Pathologic
Hyperbilirubinemia) Results from incompatibility between mother’s
blood type or Rh factor and that of the fetus Maternal antibodies develop from + fetal antigen Antibodies cross placental into fetal circulation Antibodies attach to and destroy fetal RBCs. Fetal RBCs lyse & release bilirubin into fetal
circulation
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HYPERBILIRUBINEMIA Clinical Manifestations:
Sclerae appearing yellow before skin appears yellow – usually in the first 24 hours after delivery
Skin appearing light to bright yellow – advances from head to toe
Lethargy Dark, amber concentrated urine Poor feeding Dark stools
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HYPERBILIRUBINEMIA Diagnosis:
Bilirubin levels on Cord BloodAverage level of unconjugated bilirubin is 2 mg/dl at birth
Bilirubin levels should NOT exceed 5 mg/dl
Coombs Test may be done on the fetal cord blood (direct Coombs test) or on the maternal blood (indirect Coombs test).
Detects the presence of maternal antibodies attached on the infant’s red blood cells.
The test is positive if there are maternal antibodies.
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HYPERBILIRUBINEMIA NURSING CARE Careful observation of infant for signs of
increased jaundice Careful observation for and prevention
of acidosis/hypoxia and hypoglycemia, which decrease binding of bilirubin to albumin and contribute to jaundice.
Maintain adequate hydration Avoid cold stress Phototherapy – use of “bili” lights,
special fluorescent Exchange Transfusion
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Nursing Interventions for PhototherapyExposure of skin to UV lights
Reposition q 2 hrRemove from lights only for feedings
Cover eyes (remove for feeding/parent visit)
Monitor temperatureMonitor hydration status
Increase fluidsAssess for dehydrationPerform T-Bili q 12 – 24 hr as ordered
HYPERBILIRUBINEMIA
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Exchange Transfusion Treat anemia Remove sensitized RBCs that will soon lyse Remove serum bilirubin Provides albumin to increase bilirubin binding
sites
HYPERBILIRUBINEMIA
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Rhogam – Given to postpartum woman Provides temporary passive immunity which
prevents permanent active immunity (antibody formation)
Given within 72 hours of delivery Prevents production of maternal antibodies
HYPERBILIRUBINEMIA
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ABO incompatibility Occurs when type O pregnant woman with A, B
or AB blood type fetus If woman has anti A or anti B antibodies, these
antibodies cross the placental barrier Results in hemolysis of fetal RBCs
HYPERBILIRUBINEMIA
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Complications of Hemolytic Disease Kernicterus – Deposits of conjugated and
unconjugated bilirubin in the basal ganglia of the brain Neurologic damage
Hydrops fetalis – severe anemia Marked edema Cardiac decompensation Multiple organ failure Possible death
HYPERBILIRUBINEMIA
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TORCH INFECTIONS
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INFECTIOUS DISEASES: TORCH Toxoplasmosis Other
Syphillis Hepititis B
Rubella Cytomegalovirus Herpes Simplex II HIV -AIDs
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TOXOPLASMOSIS Protozoan infection in the pregnant woman
Raw or under cooked meats Cat feces
Transmission: Transplacental Affects on the fetus
Blindness Deafness Convulsions Microcephaly Hydrocephaly Severe mental impairment
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OTHER - SYPHILLIS Transmission: Transplacental Clinical Manifestations:
S/S of Newborn: Rhinitis Excoriated upper lip Red rash around mouth and anus Copper colored rash of face, palms and soles Irritability Edema Cataracts.
Treatment: Culture orifices Isolation Penicillin
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OTHER – Hepatitis B Transmission
Placental Birth Breast milk
Treatment If mother + HbSAG administer to newborn
Hepitisis B vaccine HBIG (Administer within 12 hrs of birth)
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Transmission: transplacental S/S of Newborn
Congenital cataracts Deafness Congenital heart defects Sometimes fatal Intellectual disability(Affects are greatest if infected in 1st trimester)
MMR Immunization of motherGive when not pregnant – usually in immediate
postpartum period. Newborns are infectious:
CONTACT ISOLATION
RUBELLA
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CYTOMEGALOVIRUS –(HERPATIC VIRUS) Transmission
Crosses placental barrier Direct contact at birth Breast milk
S/S of Newborn Severe neurological problems Eye abnormalities Hearing loss Microcephaly Hydrocephaly Cerebral palsy Mental delays
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HERPES SIMPLEX II Transmission:
Direct contact at birth S/S of Newborn
Microcephaly Mental delays Seizures Retinal dysplasia Apnea Coma
Contact Isolation – Culture vesicles Treatment: Antivial Drugs
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Transmission:TransplacentallyExposure at birthBreast milk
Diagnosis:Serology tests are performed within 48
hours of birth; repeated at 3 and 6 monthsHIV antibodyELISACD4 + T-cell
HIV/AIDS
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HIV infected (two or more positive tests for HIV)
Perinatally exposed (born to a mother know to be infected with HIV)
Seroconverter (born to a mother known to be infected with HIV but has had two negative HIV tests
HIV/ AIDSDIAGNOSIS:
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Nursing Interventions HIV infected mothers should be identified and
begin treatment with AZT during pregnancy and in labor
All infants born to an infected mother should be treated prophylactically◦ 6 weeks of AZT orally after birth◦ Bactrim and Septra
Provide care like that of any other newborn Protect against opportunistic infections
HIV / AIDS
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INFANTS OF DIABETIC MOTHERS
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What causes the
Excessive fetal growth?
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INFANTS OF DIABETIC MOTHERS Clinical manifestations IDM
Hypoglycemia Hypocalcemia Polycythemia Macrosomic Excessive adipose tissue RDS
Increase risk of birth injuries.
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INFANTS OF DIABETIC MOTHERS Why Hypoglycemia?
High levels of glucose cross the placenta In response, fetus produces high levels of insulin High levels of insulin production continues after
cord cut Depletes the infant’s blood glucose
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Clinical Manifestations:Large size – Macrosomia; enlarged spleen, heart,
liverTremorsCyanosisApneaTemperature instabilityPoor sucking and feedingHypotonic muscle tone / Lethargy
Nursing Interventions Assess blood glucose
Intervene if < 45mg/dl: Feed infant
Revaluate blood sugar 30-45 minutes pc If no improvement: IV of D10W
INFANTS OF DIABETIC MOTHERS
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NEWBORN OF SUBSTANCE ABUSE MOTHER
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FETAL ALCOHOL SYNDROME - FAS
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FETAL ALCOHOL SYNDROME - FAS Clinical Manifestations:
Jitteriness Abdominal distention Exaggerated rooting and sucking reflexes
Affected body systems: CNS
GI system
Long-term psychosocial implications: Feeding difficulties Mental retardation
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Central Nervous Systemo IRRITABILITY
• Hyperactivity• Shrill cry• Exaggerated reflexes• Facial scratches• Short non-quiet sleep
Sneezing, coughing, yawning Gastroinestional System
o Poor feedingo Disorganized vigorous sucko Vomiting and/or Diarrhea
Vasomotor and Cutaneous Signso Tachypneao Sweatingo Excoriated skin
INFANTS OF ADDICTED MOTHERSCLINICAL MANIFESTATIONS OF INFANT WITHDRAWAL
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INFANTS OF ADDICTED MOTHERS Nursing Interventions for Infant Withdrawal:
Swaddle with hands near mouth Offer pacifier Place in quiet dimly lit area of the nursery Protect skin from excoriation Monitor V/S Provide small frequent feedings Position with HOB elevated Weigh every 8 hours (if vomiting & diarrhea) Assess with Finnegan Abstinence Scale Administer morphine, phenobarbitol, methadone
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AFFECTS OF SMOKING ON THE FETUS DURING PREGNANCY
Nicotine Causes vasoconstriction Reduces placental blood circulation
Carbon Monoxide Inactivates fetal and maternal hemaglobin
Reduced amount of oxygen to fetus results in prematurity or low birth weight
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THE END !