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preterm an postterm newborns
linton
102
Nursing
Undergraduate 1
04/30/2023

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Term
infants classified as large for gestaional age are
Definition
>4000g (8.8lb)
Term
preterm infant
Definition
<37 wks
Term
early term infant is born between
Definition
37wks and 38 wks, 6days
Term
full term infant is born between
Definition
39 and 49 wjs
Term
later term infant is born between
Definition
41wks and 41wks, 6 days
Term
postterm infant is born beyond
Definition
42wks
Term
a low birth weight infant weighs
Definition
2500grams (5.8lb)
Term
standardized method used to estimate gestaional age within 1 to 2 wks is the
Definition
ballar scoring system
Term
failur of the aveoli to expand
Definition
previability
Term
required o2 can be administered throug
Definition
nasal catheter,incubator or o2 hood
Term
respiratory distress sysndrom is also called
Definition
hyalin membrane disease, or repsiratroy distress syndrom typoe 2
Term
a result of lung immaturity which leads to reduced gas exchange
Definition
RDS
Term
in RSD ther is a deficient synthesis or release of
Definition
surfactant
Term
surfactant is high in
Definition
lecithin
Term
a fatty protein necessary for absorption of oxygen by the lungs
Definition
lecithin
Term
testing for this ratio provideds information about the amobunt of surfactant in amniotic fluid
Definition
lecithin/sphinogomylin ratio
Term
manifestations of RDS
Definition
tachypnea, grunlike sounds, nasal flaring, cyanosis, intercostal and sternal retractions
Term
these symptoms occur if RDS becomes more sever
Definition
edema, lassitutd and panea
Term
furfactant begins to appear in the fetal alveoli at approx
Definition
24wks gestation
Term
surfactant is at a level to enable the infant to breathe adequately at birth by
Definition
34wks gestation
Term
in preterm newborns surfactant can be administered via
Definition
endotracheal tube at birth, or when RDS symptoms appear
Term
after treatment of RDS improvement of lung function should be seen within
Definition
72 hrs
Term
surfactant produciton is altered during episodes of
Definition
cold stress, hypoxia, porr tissue perfusion
Term
a high risk for infants receiving prologned treatment with high concentraitons of o2
Definition
o2 toxicity
Term
the toxic respons of the lung to o2 therapy
Definition
bronchopulmonary dysplasia
Term
symptoms of bronchopulmonary dysplasia that interfere with ventilation
Definition
atelectasis, edema, and thickening of the membranes
Term
an apneic episode may be accompanied by
Definition
bradycardia and cyanosis
Term
ways to stimulate breathing after apnea
Definition
gentle rubbing of the infant's feet, ankles and back
Term
ways to facilitat breathing if previos measures fail
Definition
suctioning of nose and mouth, raising of the infant's head and ambubag if breathing does not begin
Term
inadequate oxygenation at the cellualar level in a newborn infant
Definition
hypoxia
Term
deficiency of oxygnet in the arterial blood is know as
Definition
hypoxemia
Term
a normal pulse oximetry saturation level
Definition
92%
Term
the amount of desatruated hemoglboin needed to produce clinical cyanosis
Definition
5 g/dL
Term
if the hemoglobin present is an abnormal fetal hemoglobin _ can be present even when the pulse is _ because fetal hemoglobin does not redily release _ to the tissues and _
Definition
hypoxia, normal, oxygen, end organs
Term
signs of sepsis in newborn
Definition
low temp, lethargy, irritability, poor feeding, resp distress
Term
treatment of sepsis involves
Definition
administration of IV antimicrobials, maintenance of warmth and nutrition, close monitoring of vital signs
Term
heat loss in the preterfm infant results from
Definition
lack of brown fate, excesive heat loss from radiation, imamture heat regulating center of the brain, sweat glands no funtioning, infant is inactive, has muscles that are weak and less resistant to cold and can't shiver, posture of preterm infant extrmities is lege extension, high metablolism
Term
cold stress increases the need for
Definition
oxygen and glucose
Term
hypoglycemia is aggravated by the need ot for increased glycogen in the
Definition
brain, heart and other tissues
Term
hypoglycemia is agravated by the need for glycogen as a result of
Definition
asphyxia, sepsis, rds, unstable body temp
Term
plasma glucose levels in the term infant that inicate hypoglycemia
Definition
<40 mg/dL
Term
plasma glucose levels in the preterm infant that inicate hypoglycemia
Definition
<30 mg/dL
Term
perterm infnats may need gavage or parenteral feedings to supply their needs of
Definition
120 to 150 kcal/kg/day
Term
also seen in preterm an dsick newborns
Definition
hypocalcemia
Term
can result in infants with lower serum calcium levels
Definition
early birth
Term
infants who are at risk for hypocalcemia
Definition
infants stressed by hypoxia, birth trauma or receiving sodium bicarb
Term
usually occurs about 1wk of age in newborn or preterm infants who are fed cow's milk
Definition
late hypocalcemia
Term
increases serum phosphate levels which cause calcium levels to fall
Definition
cows milk
Term
treatment of for hypocalcemia
Definition
IV calcium gluconate
Term
during IV therapy for calcium gluconate, the nurse should monitor the infant for
Definition
bradycardia
Term
adding this also lowers phospate levels
Definition
calcium lactate powder
Term
calcium lactat tablets must not be used because they are
Definition
insoluble in milk
Term
when calcium lactate powder is slowly discontinued from the formula, the nurse should again monitor the infant for signs o f
Definition
nonatal tetany
Term
preterm infants are more prone to bleeding than fullterm infants because their blood is deficient in
Definition
prothrombin
Term
a disorder of the devoloping retina in premature infants that can lead to blindiness
Definition
retinopathy of prematurity
Term
it is recommended that inants ge a routin retinal exam by certified ophthalmologists with a birth weight between
Definition
1500 and 2000g, or gest age <30 wks
Term
treatments used with success in preventing blindness r/t retinopath of prematurity
Definition
retinal ablative theratpy using laser photocoagulation of the fibrous tissu, intravitreal injection of bevacizumab
Term
infants must be provided with the level of o2 required to sustain life and prevent
Definition
neurological damage
Term
abdominal girth should be measured and bowel sounds assessed in orderto detgect early signs of
Definition
necrotizing enterocolitis
Term
signs that inidcate readiness for oral feedings include
Definition
strong gag, sucking and rooting reflexes
Term
nipple feeding are started slowly and due to energy spent of oral feeding we may seen some
Definition
initial weight loss
Term
placing inaft on the right side or abdomen after feeding promots
Definition
gastric emptying and rduces apiration risk
Term
an acute inflammation of the bowel that leads ot bowel necrosis
Definition
necrotizing eneterocolitis
Term
factors that implicate necrotixing enterocolitis
Definition
diminished blood supply to the ling of the bowe wall (because of hypoxia or sepsis)
Term
sings of NEC include
Definition
abdominal distention, bloody stools, diarrhea, bilious vomitous
Term
important measures r/t NEC
Definition
measuring the abdomen, listening for bowel signs
Term
treatment fo rNEC includes
Definition
antimicrobials and use of parenteral nutrition, removal of necrosed bowel may be inidcated
Term
the urin output should be between
Definition
1 and 3 mL/kg/hr
Term
an increase of more than _ in 24 hrs or a bilirubin level greater than _ requires careful investigation
Definition
5mg/dL, 12.9 mg/dL
Term
more serious and cocurs within 24 hrs of birth and is secondary to an abnormal condition
Definition
pathological jaundice
Term
in preterm infants the normal rise in bilirubin is
Definition
slower than in full term infants and lasts longer
Term
there is more evidence of jaundic in infants who are
Definition
breastfed
Term
causes of early onset jaundice of the breastfed infant
Definition
indadequate suckling at the breast
Term
_ should not be offered to the infant because this practice may reduce milk intakea and can serve to further increase bilirubin levels
Definition
glucose water feedings
Term
in late onet jaundice of the breastfed infant the breast milk itself may inhibit
Definition
conjugation of bilirubin
Term
in the breastfed infant formula may be substitued for _ to reduce bilirubin levels
Definition
24 to 48 hrs
Term
total serum bilirubin level typically peaks _ after birht
Definition
3 to 5 days
Term
the goals of treatment for hhyperbilirubinemea
Definition
prevent kernicterus, avoid the continued icnreas of bilirubin
Term
immediate needs of newborn are
Definition
clear the airway and provide warmth
Term
the nurse records the temp of the infnat and ithe incubatore every
Definition
2 hrs
Term
the temp probe should not be palced over a
Definition
bony prominence, areas of brown fat, the extremites or an exoriated area of the body
Term
the uses of a pexiglas shield with the radiant warmer is not recommended becauseint may
Definition
block infrared heat
Term
_ should be placed over the skin temp prove to ensure that the infant's skin temp reading is not affected by the infrared heat of the radiant warmer
Definition
reflective patch
Term
the ability to coordinate breathing, sucking and swallowing doe snot develop before
Definition
34wks gestation
Term
infants wight more than _ may be able to bottle feed if a small, soft nipple with a large hole is used to minimize the energy and effort required for sucking
Definition
1500g (3.3lbs)
Term
if the infant is gavage fed the tube is replaced every
Definition
3 to 7 days
Term
signs that inidicat intestinal readiness for oral feedings
Definition
bowel sounds an passage of meconium
Term
infant older than _ gestation usually have the digestive enzyme for the digestion fo breastmik
Definition
28 wks
Term
formulas designed for term inants are not well tolerated by preterm infants because they are a burden to their kidnesy and can cause
Definition
CNS problems
Term
formulas designed for pretrm infants are not well tolerated by infants older than 34 wks gestation or term infants because _ may develop
Definition
hypercalcemia
Term
proppint the infnat on the side or placing the infant pron can
Definition
reduce rep effor, improve oxygenation, promote a more organized sleep patttern, lessen physical activity that burns up energy needed for g&d
Term
can provide a calming, supporting environment that promotes body flexion for the preterm infant
Definition
enclosed space (nesting)
Term
should not be used in the preterm infants thin and sensitive skin
Definition
alkaline based soap, alcohol, and medicated wipes
Term
recommended adhesives
Definition
hydrocolloid adhesive or using gauze or cotton under adhesive tape
Term
daily cleansing of the _ and bathes _ weekly promote skin integrity
Definition
eyes, mouth and diaper area, 2 or 3
Term
when clensing the infant _ promotes skin integrity
Definition
eucerin or aquaphor
Term
the preterm infant should be awakened _ for procedures or nursing care
Definition
slowly and gently
Term
_ is beneficial to the infant
Definition
nonnutritive sucking
Term
problems associated with postmaturity
Definition
asphyxia, meconium aspiration, poor nutritional status, increase in red blood cell production, difficult delivery, birth defects, seizures
Term
caused by chronic hypoxia while in the uterus because of a detoriorated placenta
Definition
asphyxia
Term
seizure occur as a result of the
Definition
hypoxic state
Term
the postterm infant is _ and looks as though weight has been lost, skin is _ especially around _
Definition
long and thin, skin, thighs and buttocks
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