NICU Quick Review Flashcards

1
Q

What is the presentation time for “classic” hemorrhagic disease of the newborn?

A

2-7 days

  • Early- within the first 24 hours after birth
  • Late: 2-12 weeks post birth
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2
Q

What is thought to be the etiology of early HDNB?

A

Maternal medication use such as antiepileptics

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3
Q

What is the dose of IM Vitamin K?

A

Less than 1500 g- 0.5 mg

Greater than 1500 g - 1 mg

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4
Q

How is oral Vitamin K dosed?

A

Need 3 TOTAL doses
2 mg at first feed
2 mg at 2-4 weeks
2 mg at 6-8 weeks

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5
Q

What is the association between breasting feeding and HDNB?

A

Late disease more commonly seen in breast fed babies

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6
Q

When should pulse oximetry screening be done and why? Who should be screened?

A

Should be done between 24-36 hours and not before because of rate of false positives being higher
- All term and late preterm infants

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7
Q

When should prophylactic antibiotics be given to an infant?

A

All infants born <33 weeks born to mothers with chorioamnionitis or PPROm should recieve abx for 36-48 hours until culture were negative

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8
Q

When should prophylactic antibiotics be given to a mother?

A

PPROM and expecting to delivered before 33 weeks

Consider it in GBS unknown mothers with preterm delivery

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9
Q

When should a mother receive a course of antenatal steroids?

A

If <35 weeks and imminent delivery within 7 days

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10
Q

When should a mother receive MgSO4?

A

If <34 weeks GA

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11
Q

When should baby be put in a bag to prevent hypothermia?

A

If <32 weeks

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12
Q

What are targets for PCO2 when ventilating a neonate? Why?

A

Target between 45-55 with a max of 60

To help prevent periventricular leukomalacia (PCO2 below 35 mmHg) and intraventricular hemorrhage (PCO2 above 60 mmHg

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13
Q

What are indications to start iNO?

A
GA>35 weeks
OI >20-25
PaO2<100 when on 100% FiO2
ECHO has rule out congenital heart disease
Conventional therapies are failing
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14
Q

What are indications for surfactant therapy?

A

Intubated with RDS* may not meet high risk criteria yet
Severe pneumonia or pulmonary hemorrhage
MAS with FiO2 >50%
<29 weeks at an outborn center

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15
Q

What babies would qualify for a screening ultrasound?

A

Less than 1500 g

Less than <31+6 weeks

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16
Q

What is the prognosis with PVL?

A

Poor

Cerebral Palsy

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17
Q

What are risk factors for development of PVL?

A
Twin to twin transfusion syndrome
Postnatal dexamethasone
Chorioamnionitis 
Asphyxia
Severe lung disease
Hypocarbia 
NEC
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18
Q

What are long term vision risks for preterm infants?

A
  • Refractive error
  • Strabismus
  • Amblyopia
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19
Q

What are risk factors for developing ROP?

A
  • Prolonged ventilation
  • Oxygen therapy
  • Hypotension
  • Slow postnatal growth
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20
Q

For which infants has cooling benefit been established?

A

Only established for those with moderate HIE

- Not established for severe HIE

21
Q

What are the standard criteria for cooling?

A

Greater or equal to 36 weeks
<6 hours of age

*May decide to cool up to 35+0 but very situation dependent

22
Q

What are criteria for cooling?

A

Need A or B +C
Criteria A:
APGAR <5 at 10 mins
pH <7.0 or BE >16
Criteria B:
pH between 7.01 to 7.15 with BE between 10-15.9
* History of acute perinatal event (such as but not limited to cord prolapse, placental abruption or uterine rupture) AND
* Apgar score ≤5 at 10 minutes or at least 10 minutes of 
positive-pressure ventilation

Criteria C: Evidence of moderate-to-severe encephalopathy, demonstrated by the presence of seizures OR at least one sign in three or more of the six categories

23
Q

What is the most common pattern of injury seen on imaging?

A

Basal ganglia and thalamus

Ischemia to watershed areas

24
Q

What is the incidence of neonatal encephalopathy?

A

1/1000 to 6/1000 live births

25
What are side effects of cooling?
Bradycardia Coagulopathy Hypothermia and hypotension Electrolyte abnormalities/fat necrosis- rare SE
26
When is the highest risk time for seizures?
During rewarming
27
How is the baby rewarmed? And when?
Cooled for 48-72 hours with target temp of 33.5 degrees | Rewards by 0.5 degrees q3h
28
What are contraindications to cooling?
``` Chromosomal abnormality Severe head trauma or bleeding Severe encephalopathy* end of life care Congenital anomaly Chromosomal anomaly ```
29
What type of CP is commonly seen in preterm infants?
Spastic diplegia* associated with PVL | Injury to corticospinal tracts
30
What is the definition of transitional hypoglycemia?
BG <2.6 within the first 72 hours of life
31
What is the definition of persistent hypoglycemia?
BG <3.3 after the first 72 hours of life
32
List three RF for hypoglycemia
``` SGA LGA IDM Preterm (<37 weeks) Maternal labetalol use late exposure to prenatal steroids, metabolic conditions, genetic syndromes, perinatal asphyxia ```
33
What is the most common cause of hypoglycemia?
Impaired gluconeogenesis
34
When should you screen at risk infants?
IDM- for the first 12 hours; stop if normal SGA/prem- for the first 24 hours; stop if normal after 24 hours - Always check if asymptomatic
35
At what GIR should medication and subspecialty evaluation be considered?
GIR of 10-12
36
Which fluid and and at what rate would you start IVF?
D10W at TFI of 80 gives GIR of 5.5
37
What is the target sugar range for a neonate less than 72 hours old?
2.6 to 5.0
38
What is the target sugar rate for a neonate over 72 hours old?
3.3 to 5.0
39
At what GIR should a central line be considered?
GIR 8-10
40
When should a critical sample be drawn? What does it include?
Persistent hypoglycemia when over 72 hours of life for BG <2.8 - confirmatory plasma glucose, beta-hydroxybutyrate, bicarbonate, lactate, free fatty acids, insulin, growth hormone, cortisol, carnitine, and acylcarnitine profiling.
41
Chronic bilirubin encephalopathy is associated with what type of CP?
Athetoid CP
42
What is the definition of severe hyperbilirubinemia?
TSB >340 micromol/L
43
What is the definition of critical hyperbilirubinemia?
TSB >400 micromol/L
44
What are the values for bilirubin at which phototherapy threshold plateaus?
Low risk- 360 Med risk - 310 High risk - 260
45
How long is an infant at risk for perinatal transmission of HSV after being born?
6 weeks
46
For babies that DO get late HDN, what is the % that get intracranial bleed?
50%
47
Name 3 hypoglycemic conditions in which the glucose requirement is expected to be normal for a term baby.
GH deficiency, cortisol deficiency, prematurity, SGA, fatty acid oxidation defect, galactosemia
48
Name 3 hypoglycemic conditions in which the glucose requirement is expected to be greater than for a term baby
Hyperinsulinism, Beckwith-Weidman, IDM, sepsis