Neonatal Resucitation Flashcards
(76 cards)
What is the critical period for physiologic changes in a newborn?
The first several breaths after birth.
What is the main result of lung expansion in a newborn?
Elevation of partial pressure of oxygen (PO2) in alveoli and arterial circulation.
What happens to pulmonary vascular resistance after birth?
It decreases.
What happens to right-to-left shunting through the ductus arteriosus after birth?
It decreases.
What happens to venous return to the left atrium after birth?
It increases.
What is the result of an increase in left atrial pressure after birth?
Cessation of right-to-left shunting through the foramen ovale.
What does adequate systemic arterial oxygenation depend on?
Well-expanded, well-ventilated lungs and adequate circulation.
What is the fetal response to hypoxia?
Becoming apneic.
What is primary apnea?
A brief period of oxygen deprivation leading to apnea, reversible with stimulation and oxygen.
What is secondary apnea?
A prolonged period of oxygen deprivation leading to irregular gasping and apnea.
What percentage of neonates require some assistance at birth for normal transition?
0.1
What percentage of neonates require extensive resuscitation?
Less than 1%.
Name two maternal conditions that increase the risk of high-risk delivery.
Diabetes mellitus, hypertension.
Name two obstetric conditions that increase the risk of high-risk delivery.
Placental anomalies, premature rupture of membranes.
Name two fetal conditions that increase the risk of high-risk delivery.
Prematurity, macrosomia.
What is the first goal of neonatal resuscitation?
Minimizing immediate heat loss.
What is the main method to establish normal respiration and lung expansion?
Clearing the upper airway and using positive pressure ventilation if necessary.
What percentage of newborns need advanced resuscitation?
Less than 1%.
What percentage of newborns need basic resuscitation with bag-mask ventilation?
3-6%.
What percentage of newborns need simple stimulation at birth?
5-10%.
Name two pieces of essential suction equipment needed in the delivery room.
Bulb syringe, mechanical suction with tubing.
What size ET tubes should be prepared for full-term neonates?
3.5 mm.
What medication is used for neonatal resuscitation in cases of severe bradycardia?
Epinephrine.
What is the first step immediately after a baby is born and is crying?
Routine care: drying, clearing secretions, and skin-to-skin contact.