newborn complications Flashcards

1
Q

hyperbilirubmia is caused by

A

not enough albumin
bilirubin escaping liver

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2
Q

what is bilirubin

A

yellow bile pigment produced by the breakdown of rbc

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3
Q

function of albumin

A

transport bilirubin
prevent bilrubin from escaping into vascular space and prevents it from being into tissues

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4
Q

what takes bilrubin to liver

A

albumin

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5
Q

how does bilirubin get in liver

A

disffuse and endocytosis

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6
Q

what makes bilirubin soluble

A

glucuronyl transferase
- congualted

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7
Q

why cant bilirubun be reabsorbed once its cogugated

A

it gets bigger

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8
Q

issues with NB that cause jaundice

A

immature livers
faulty process
binding sites are low in supply

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9
Q
A
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10
Q

what gives yellow colour

A

biliruin getting into tissues

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11
Q

billirubin in brain

A

neurotoxicity

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12
Q

what needs to be working well to prevent too much bilirubin issues

A

GI, get bilirubin leaving! encourage bf

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13
Q

what is a natural laxtive that helps pass mecomin

A

colotrsum

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14
Q

how is bilirubin made

A

breakdown of HEME

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15
Q

lifespan of neonatal RBC

A

shorter than adults

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16
Q

what causes increase bilirubin production in NB

A

more RBC/ Hb made due to shorter lifespan?

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17
Q

what infants get polycythemia

A

diabetic mothers babies

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18
Q

when are bilirubin levels checked

A

24-72hrs after birth

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19
Q

how does jaundice move

A

down the body, head to down , in sclera

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20
Q

physiological jaundice appears when and resolves

A
  • AFTER 24 HRS AGE
  • without treamtent mostly
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21
Q

pathological jaundice (time)

A

within 24 hour of age

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22
Q

reasons for physiplogical jaundice

A
  • high rbc mass, short lifepsan
  • reduce abilty of liver to conjugate
    -fewer bilirubin bindings sites
  • conugated changes in unconjugates in intestine
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23
Q

what number means hyperbilirubinemia

A

more than 340 in the first 28 days of life? or less

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24
Q

does bilirubin cross BBB

25
kernicterus is
long term - irreversible consequence of bilirubin toxciity cant undo
26
signs and symtpms of encephalopathy
lethargy hypotonia irrtiabilty seziures coma death
27
what can cause bilirubin to displace from albumin
cold tress or asphyixa
28
what race pop has higher risk of hyperbilurbinemia
asian and indigenous babies
29
what gender baby is more likely to get hyperbili
boy babies
30
how to check for jaundice
- press done on forehead (bony prominece) can see jaundice in between darkskinned babies: sclera and mucos membrane - natural light
31
reducing risk of jaundice
-early bf - feed frequent - avoid glucose water (dont wanna take up space) - meconim water
32
transcutaneous bilirubin screening
- checking bilirubin levels - tale three readings and take avg - first 72 hrs of life or earlier - can do same time as metabolic screening
33
when are Tcb more accurate
before the start of phototherapy lower levels??
34
checking for bilirubin if mom is rh-
direct antiglobunin test or Coombs test
35
first line of treatment of hyperbilirub
phototherapy
36
how often should infant with hyperbilrubin be weighed
every day
37
why is it important to assess skin turgor for baby in phototherapy
hydration status
38
can you put oily substance on baby on phototherapy
no
39
why are babies more prone to heat loss
bv closer to skin large surface to body ratio
40
what is brown fat rich in
rich in blood supply
41
can babies make more brown fat once its gone
no
42
non shivering thermogenesis
- brown fat user
43
where does metabolic actvity increase during cold
liver and brain
44
evaporation
had bath, not dried right away, water evaporates and takes thier heat
45
conduction
on cool surface
46
convection
cool air flowing near them
47
radiation
near a window during winter time
48
when is non shivering thermogensis triggered
35-36 C
49
effects of cold stress
hypoglucemic met acidosis resp distress used brownf ats less activtyL hypotonia peripheral vc
50
babies with sepsis
pale hands and feet are cool
51
hypoglycemia numbers
less than 2.6
52
do healthy abbies need glucose screening
no
53
3rd day glucose number in NB
4-6mmol/L
54
what makes NB at risk for hypoglycemia
- moms with diabetes gest hypertension - small of gest, large preterm cold stress infection any other stress congential issues hyperthermia polycythemia
55
when to measure glucose for babies with risk factors for hypoglyecmiea
2 hrs after birth and every 3-6 afters - intial check one breast feeding
56
clincal manisfestions of NB hypoglycemia
jittery cyanosis weakcry high pitched cry poor feeding hypotonia temp isntablity resp dispress apnea seixures
57
when to discontuen bg checking
if stable for 24 hrs at 2.6 or more mmol/L
58
really hypoglycemic babies
give IV dextrose