neonatal Flashcards

1
Q

how to classify GA for preterm?

A

Preterm = GA < 37 wks at birth

  • Extreme- preterm GA<29
  • Late-preterm GA 34-37
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2
Q

how to classify birth weight?

A
  • ELBW:< 1000g
  • VLBW 1001-1500g
  • LBW 1501-2500g
  • Normal >2500g
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3
Q

how to classify the growth of the newborn? (size)

A

SGA
small for gestational age
Less than 10%ile birth wt for GA

AGA
appropriate for gestational age
between 10 to 90%ile for GA

LGA
Large for gestational age
Greater than 90%ile for GA

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4
Q

two types of disproportion of a newborn: classification

A

IUGR

Symmetric IUGR
Neither wt, length and HC above 10%ile; An indication of chronic malnutrition

asymmetric IUGR
Length and HC are appropriate but only wt is below 10%ile.

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5
Q

IUGR

A

intrauterine growth restriction

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6
Q

two types of disproportion of a newborn: which one indicates chronic malnutrition? which one is more serious?

A

Symmetric IUGR
b/c it means neither Wt, Length and HC are under development;
If there is inadequate nutrition, body first will reduce weight, then length and the last HC, since brain is the most important organ.

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7
Q

why to classify the preterm babies

A
  1. Fashion of feeding
  2. Food tolerance level
  3. Different risk of Comorbidities
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8
Q

I. Fenton Growth curve: why it is the best choice for preterm?

A

a. Gender specific
b. 22-50 wks GA: easy to follow up the growth even after 40 weeks
c. Equivalent to the WHO growth charts at 50 weeks CGA can help to modify and accommodate the WHO growth curve for preterm babies once CGA of the baby no less than 37 weeks
d. Very accurate:precise to each days
e. based on reliable sample size

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9
Q

Nutritional Goals (5)

A
  1. to approximate the rate of growth and composition of weight gain for a normal fetus (mimic the nutrient status in the womb)
  2. To maintain normal concentrations of blood and tissue nutrients
  3. To achieve a satisfactory functional outcome similar to an infant born at term
  4. NUTR adapted to ongoing medical complications
  5. Establish an adequate follow up in the community
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10
Q

6 Factors affecting preterm infant’s nutritional status

A
  1. Gastrointestinal immaturity,
  2. Thermoregulation and low reservation
  3. GI and Respiration
  4. Medical issues
  5. Decreased Absorption of nutrients
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11
Q

a. APGAR represents

A

Appearance, pulse, grimace, activity, respiration

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12
Q

what are included the initial consultation? (7 aspects: M, A. M, P,GI, Bi, C)

A
  1. maternal Hx
  2. infant Anthropocentrics
  3. the medications applied to the baby
  4. infant’s physical assessment: BWt, length, HC, etc
  5. infant’s GI (abdomen, meconium (first fece), bowl sounds
  6. infant’s biochemical records
  7. infant’s clinical signs, coordination of suck/swallow/breathe
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13
Q

NUTR intervention: what are the variable needs to considers for mode of nutrition? (5+1)

A
GA, SGA/AGA/IUGR
clinical status
medications 
coordination of suck/swollow/breathe 
(+ feeding fashion)
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14
Q

 Who needs PN? 4 points

A
  1. Congenital GI anomalies requiring surgical repair
  2. Impaired GI mobility
  3. Malabsorption syndromes
  4. Delayed initiation or advanced of enteral feeds
  5. Functional immaturity of GI tract or gestational age at birth < 30-32 weeks
  6. Necrotising enterocolitis (NEC)
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15
Q

when can initiate PN

A
  1. Start as soon as the infant is born with at least a starter PN solution to help provide adequate calories and protein
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16
Q

the nutrient components of PN solution

A

fluide
A.A. trophamine
CHO: dextrose
lipid

17
Q

neonatal PN: fluid requirement

A

initial 60-90 ml/kg/d to 120-150 ml/kg/d

18
Q

neonatal PN: AA requirement

A

start at 1.5-2 g/kg/d and advance up to a goal 3.5-4g/kg/d

19
Q

neonatal PN: dextrose requirement

A

can begin at 5-10g/kg/d to a maximum of a 10-18g/kg/d

20
Q

neonatal PN: lipid requirement

A

0.5-1.0 g/kg/d to a maximum of 3 g/kg/d

21
Q

neonatal PN: NRG requirement

A

must no less than 50kcal/kg/d,

22
Q
  1. Infant wt =? need TPN to help optimize nutritional status
A

< 1800g

23
Q

when can cessate PN

A

until the infant tolerates at least 75% to 80% of energy goal or is within 2-3 days of achieving goal enteral volume

24
Q

two fashions of PN

A

peripheral—short term/low osmolarity: Central line— long term/ higher osmolarity

25
Q

Indication of EN

A

a. All infants unable to meet nutritional requirements orally

b. 3 Contra-indications:
i. Severe respiratory distress/syndrome
ii. GI anomalies
iii. Necrotising enterocolitis

26
Q

a. which group of preterm babies unable to meet nutritional requirements orally

A

i. Premature infants < 34 wks of GA
ii. Transition from PN towards oral intake
iii. Poor suck/swallow/breathe coordination

27
Q

two routines of EN

A

a. Orogastric tube

b. Nasogastric tube

28
Q

two methodologies. Which one is more favorable?

A

a. Bolus feed q2-3 hr * 24 hrs
b. Continous feed qhr*24hrs

Bolus, because it may provide more complete nutrition by the volume