Chapter 37 - Nursing Care of the High Risk Newborn Flashcards
High Risk Newborn
Infants born considerably before term who survive are particularly susceptible to development of sequelae related to their preterm birth
High risk infants are classified according to
birth weight, gestational age, and predominant physiologic problems s
Preterm Infants
Organ systems are immature and lack adequate reserves of bodily nutrients
Potential problems and care needs of preterm infant weighing 2000 g differ from those of term, postterm, or postmature infant of equal weight
Vast majority of high risk infants are those born less than 37 weeks
Preterm rate rose in US from 1980’s to 2006 then decreased
Extremely low birth weight
Birth weight is 1000 g or less
Practical and ethical dimensions of resuscitation
Late preterm infants
Previously referred to as near-term
Born between 34-0/7 and 36-6/7 weeks
Greater risk of complications or death prior to 1 year of age
More respiratory and neurological problems
Maintaining body temperature
Neutral thermal environment (environmental temp at which O2 consumption is minimal but adequate to maintain body temp)
(so can’t maintain a normal body temp)
Physiologic Functions
Maintaining adequate nutrition
Maintaining renal function
Maintaining hematologic status
Resisting infection
Respiratory Function
Decreased # of alveoli Deficient surfactant level Smaller bronchus Greater collapsibility Weak/absent gag S/S of respiratory distress
Cardiovascular Function
Evaluate: HR BP Color Perfusion O2 Sat Pulses Blood gas Monitor
Body Temperature
Maintaining body temperature
Low body fat, decreased muscle mass, immature thermoregulation
High risk infant susceptible to heat loss
Unable to increase metabolic rate
Should be transferred from delivery in a prewarmed incubator, radiant warmer
Rapid changes in body temperature may cause apnea
CNS
Injury can occur with preterm delivery, gestational age, intrauterine asphyxia
Look for:
Seizures
CNS depression
Increased ICP (intracranial pressure - fontenelles bulge)
Hypo or Hyper tonia
Weak cry
Nutrition
May be IVF
TPN
NG/OG
Breast milk or formula
Growth and Developmental
Difficult to predict with accuracy
Corrected age
Milestones are corrected until age 2½
**Born at 28 weeks= 12 weeks early so at 12 months is actually 9 months
Usually D/C from NICU close to actual due date
High Risk Clinic
Risk of CP, Dev Delay
Corrected Age
baby born at 32 wks so 8 wks early so if 9 months old expect 7 months old stuff
Oxygen therapy (warmed and humidified)
Hood therapy Nasal cannula Continuous positive airway pressure (CPAP) Mechanical ventilation Neonatal resuscitation
Oxygen therapy
Surfactant administration High-frequency ventilation Nitric oxide therapy Extracorporeal membrane oxygen therapy Weaning from respiratory assistance
Surfactant
–>Reduces the surface tension of fluids that line the alveoli and passages= uniform expansion of lungs and maintenance of expansion at low intraalveolar pressures
**Prior to 34 weeks not enough surfactant is produced
Can give surfactant via ET tube
High Frequency Ventilation
Jet, oscillator, high frequency vents
Provide up to 300 breaths per minute
Smaller volume
Decreased the pressure needed to ventilate
Nitrous Oxide
Causes potent and sustained pulmonary vasodilation in the pulmonary circulation
Used in babies with persistent pulmonary hypertension
Viagra
ECMO
Vandy - closet to us Severe cardiac or respiratory failure Modified heart lung machine Oxygenates blood, allows lungs to rest Use with anticoagulants Cannot use in babies less than 34 weeks
Nutritional care
Weight and fluid loss or gain Insensible water loss Elimination patterns Oral feeding Gavage feeding Gastronomy feedings Parenteral fluids—TPN Advancing feedings Nonnutritive sucking
Nutrition
Suck-swallow-breathe reflex
Inability to suck due to congenital anomaly
Intubation
Potential for NEC
Anomaly such as gastroschisis or omphalocele
Renal function
Breast Feeding Nutrition
Breast milk-babies who are 28-36 weeks may breast feed if can suck and swallow and tolerate
Preterm babies that are breastfed have fewer desats and decels (A’s and B’s), better thermoregulation,improved suck-swallow reflex
Human milk fortifier
Pump if unable to breastfeed
Human milk bank
(nook nipple)