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Flashcards in Peds Exam #7 Deck (70)
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1

Brown adipose tissue

dark in color (enriched blood supply, dense cell content), easily metabolized to generate heat, richer blood supply aids in distribution of heat produced.

2

conditions necessary for BAT (brown adipose tissue) thermogenesis

norepinephrine, thyrozine, triglycerides, glucose*, oxygen*
All must be present to produce head
*usually missing

3

what complications can occur with BAT metabolism

metabolic acidosis, hypoglycemia, respiratory distress, hyperbilirubinemia

4

increased fatty acid release =

metabolic acidosis

5

increase in fatty acid =

hypoglycemia

6

decreased amount of surfactant

respiratory distress

7

free fatty acids use up bilirubin binding sites

hyperbilirubinemia

8

what can happen as a result of hyperbilirubinemia

brain damage

9

what are the A&P differences in temperature regulation in the NB

NB thin layer of subQ fat, blood vessels are closer to surface, has larger body surface area, vasomotor control is less developed, lose 4 times as much heat as an adult

10

NB produces heat primarily by

non shivering thermogenesis (fat metabolism)

11

how does the NB respond to the cold stress

crying, motor activity, increase RR

12

birth occurs after 20 weeks but before 37 weeks

preterm

13

weight of NB of less than 2500 gm (5lb 8oz)

LBW

14

weight less than 1500 gm

VLBW

15

below the 10th percentile for given gestational age

SGA

16

height for preterm babies

17-19 inches

17

head circumference for preterm babies

10-12 inches

18

when is subQ fat developed

4 weeks prior to term/delivery

19

is lanugo present in preterm

yes

20

will vernix be present in a preterm

yes, do not remove it

21

difference in preterm head

head bigger as compared to body, nose is short and small

22

difference in thorax of preterm

rib cage is weak, weak cough and gag, periodic breathing (always count for one minute)

23

what is different in the ear of the preterm

pinna is flat and slow or no recoil

24

reflexes of preterm

suck swallow gag is poor, moro, tonic neck, Babinski present,

25

when does BAT appear

26-30 weeks

26

cold stress in a NB can cause what

hypoglycemia, hypoxia, academia, hyperbilirubinemia

27

S/sx of fluid volume excess

edema, crackles, increase body weight, bulging fontanels

28

s/sx of fluid volume deficit

sunken fontanels, decrease skin turgor, dry mucous membranes

29

preterm have insensible water loss because

respiratory (loss 30% if have resp issues), transepithelial (more water diffusion through skin bc of the thinness

30

when weighing diapers 1 gm of fluid = what

1 mL