preemies Flashcards

1
Q

when is it considered a preterm birth

A

before 37 weeks of gestation

*extremely preterm before 28 weeks

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2
Q

when is it considered a term birth

A

between 37 and 42 weeks gestation

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3
Q

when is it considered a post term birth

A

a birth that occurs after 42 completed weeks of gestation

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4
Q

risk factors for child death

A

pre-term delivery
low birth weight
maternal age
smoking

complication during delivery
higher risk of death for twins/multiple pregnancies
abnormally shaped uterus

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5
Q

T/F women living in the most deprived areas are 30% higher risk of stillbirths and neonatal death compared to women living in least deprived

A

F - the statistic is that they are 80% higher risk

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6
Q

why do preemies need so much more support

A

smaller > get cold faster, have fewer reserves
fragile lungs > cannot adapt to air breathing
pulse oximetry > titration of oxygen

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6
Q

why do preemies need so much more support

A

smaller > get cold faster, have fewer reserves
fragile lungs > cannot adapt to air breathing
pulse oximetry > titration of oxygen

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7
Q

how to manage a preemie

A

-delayed cord cutting
-keep warm using a plastic bag under radiant heater
-gentle lung inflation PEEP important
-inital O2 conc.
-use saturation monitor careful use of oxygen

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8
Q

what are the common problems of prematurity

A

temperature control
feeding/nutrition
sepsis
system immaturity/dysfunction
metabolic syndromes

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9
Q

why is thermal regulation in babies ineffective

A

low BMR
minimal muscular activity
subcutaneous fat insulation is negligible
high ratio of surface area to body mass

*hypothemia is a killer

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10
Q

why do preemies have increased risk of nutritional compromise

A

limited nutrient reserves
gut immaturity
immature metabolic pathways
increased nutrient demands

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11
Q

organisms that caused early onset neonatal sepsis

A

Gp B Strept
Gram negatives

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12
Q

organisms that cause late onset neonatal sepsis

A

coagulase negative staphylococci
gram negatives
staph aureus

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13
Q

why are preemies more likely to develop late onset sepsis

A

immature immune system
intensive care environment
indwelling tubes and lines

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14
Q

mx of neonatal sepsis

A

prevention
hand washing
super vigilant and infection screening
judicious use of abx
supportive measures

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15
Q

what are the respiratory complications of prematurity

A

RDS

apnea of prematurity

bronchopulmonary dysplasia

16
Q

what is RDS

A

hyaline membrane disease

> primary path = surfactant deficiency or structural immaturity > alveolar damage , formation of exudate from leaky capillaries

17
Q

clinical features of RDS

A

respiratory distress

tachypnoea - grunting, intercostal recessions, nasal flaring, cyanosis

worsens over minutes to hours

natural history

18
Q

mx of RDS

A

maternal steroid

surfactant

ventilation

19
Q

what are short term vs long term complications of prematurity

A

short = RDS, PDA etc

long = cerebral palsy