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Neontal boards J > Asphyxia and Resuscitation > Flashcards

Asphyxia and Resuscitation Flashcards

1
Q

What are the degenerative enzymes in asphyxia

A

Proteases (calpase)
Nitrogen oxide synthase
Phospholipiase

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2
Q

Criteria for HIE

A

Criteria include clinical and biochemical components

▪ History of perinatal asphyxia event
▪ Evidence of acute acidosis on umbilical artery gas pH <7.00 or BE > −12)
▪ Apgar < 5 at 10 minutes or continued need for mechanical ventilation at 10 minutes after birth

▪Neurologic criteria
▪ Seizure
▪ Or evidence of moderate to severe encephalopathy on examination (must have at least three to six components in the moderate to severe category)

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3
Q

Which ventilation device can provide consistent tidal vol, PIP, PEEP

A

T-piece

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4
Q

Earliest sign of adequate ventilation

A

Rising HR

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5
Q

How to trouble shoot ventilation?

A

MR SOPA
Mask
Reposition
Suction
Open airway
Pressure- inc to produce adeq chest rise
Alternative

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6
Q

Goal of event in compression to breath

A
  • 120 events/min
  • 3:1 ratio
  • 90 compression: 30 breaths
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7
Q

Contraindication for delayed cord clamping

A
  • maternal hemorrhage
  • need for immediate neonatal resuscitation
  • disrupted placental circulation such as placental abruption, previa, or cord avulsion
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8
Q

What is the focus of neonatal resuscitation

A

Effective ventilation of the baby’s lungs

-Unlike adults, primary problem is lack of gas exchange

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9
Q

What are the events for successful fetal to neonatal circulation

A
  1. First deep breath and cry: fluid reabsorbed, lung fills with air
  2. O2 relax pulmonary vessels: increase pulmonary blood flow
  3. Oxygenated blood returns to the heart to ensure perfusion to heart and brain
  4. Clamping of the cord increases systemic blood flow, dec tendency for blood to bypass the baby’s lungs
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10
Q

What are the clinical findings of abnormal transition

A
  1. irregular breathing, apnea, tachypnea
  2. bradycardia/ tachycardia
  3. decreased tone
  4. Pale skin or cyanosis
  5. Low oxygen
  6. Low BP
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11
Q

What are the 4 pre birth questions

A
  1. Gestational age
  2. Amniotic fluid clear
  3. Additional risk factor
  4. Umbilical cord management
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12
Q

What are the rapid evaluation questions in newborn

A
  1. term?
  2. tone?
  3. breathing or crying?
  • If no, bring to warmer
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13
Q

True or false
If meconium stained amniotic fluid present, routine laryngoscopy should be done

A

False

-If unable to inflate lungs and airway obstruction suspected- intubation and tracheal suction may be necessary

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14
Q

What is target oxygen saturation

A
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15
Q

Indications to start PPV

A
  • Apnea
  • Gasping
  • HR<100
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16
Q

Why not routinely use 100% during all neonatal resuscitation

A

Mortality decreased among term and late preterm with 21%

17
Q

Primary method of confirming endotracheal intubation

A
  • Exhaled CO2
  • Inc HR
18
Q

Baby worsens after intubation, what to consider

A
  • D-isplacement
  • O-bstruction
  • P- neumothorax
  • E- quiment
19
Q

Endotracheal tube size

A
20
Q

ET insertion depth

A
21
Q

How deeply do you compress the chest

A

1/3 of the AP diameter

Do not squeeze the chest
Thumb should remain in contact

22
Q

Epinephrine:
Concentration-
Dose-
Flush-

A

Concentration: 0.1mg/ml, 1mg/10ml, 1:10000
Dose: 0.02mg/kg (0.2ml/kg) range 0.01-0.03
Flush 3 ml

Goal: improve coronary A perfusion & O2 delivery via inc strength & rate

23
Q

Volume expansion recommendation

A

10ml/kg
rate 5-10 mins

  • Should not be routinely given in absence of shock or history of acute blood loss; large volume load may actually worsen cardiac output and further compromise the newborn
24
Q

Temperature in the room where resuscitation takes place

A

23-25C (74-77F)

25
Q

To avoid neurologic injury while resuscitation in preterm neonate

A
  • handle baby gently
  • avoid positioning legs higher than head
  • avoid high PPV/CPAP pressures (>40/>6)
  • use pulse ox
  • avoid rapid IV infusion
26
Q

Why premies have higher risk for hypothermia

A
  • Thin skin
  • Dec SQ fat
  • Large surface area to body mass
  • limited response to cold
27
Q

What is the first preferred vasopressor for septic shock

A

Norepinephrine

  • acts on both α1- and β1-adrenergic receptors: vasoconstriction (α1 effect) and an increase in CO (directly through β1 effect and indirectly through increased MAP)
  • does not routinely increase pulmonary vascular resistance
28
Q

Which vasopressor is contraindicated in aortic stenosis

A

Dobutamine

29
Q

Sources of heat loss

A
  1. Evaporative- water
  2. Radiant-cooler object
  3. Convective- cooler air
  4. Conductive- cooler surface

Prevent heat loss at delivery via
1. DR temo 73.4-77F
2. plastic wrap
3. thermal mattress
4. hat

30
Q

Low Apgar score in neonates is associated with—

A

Increased risk for CP

Neontal boards J (19 decks)

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