Examkin

Question

Difficulty: MediumNeonatal Disorders

A 39-week gestation male neonate is delivered via emergent cesarean section due to placental abruption and severe fetal bradycardia. At delivery, the infant is apneic, completely flaccid, and cyanotic. The heart rate is auscultated at 40/min. Assume the infant's condition does not improve and the heart rate remains persistently below 60/min despite the proper execution of each subsequent intervention. Arrange the following critical steps of neonatal resuscitation in the correct chronological sequence from first to last, according to standard neonatal resuscitation guidelines.

  1. 1Warm, dry, position the airway, and stimulate the infant
  2. 2Initiate positive pressure ventilation (PPV)
  3. 3Perform endotracheal intubation
  4. 4Commence synchronized chest compressions
  5. 5Administer intravenous epinephrine via an umbilical venous catheter

Answer

The correct sequence is: Warm, dry, position the airway, and stimulate -> Initiate positive pressure ventilation (PPV) -> Perform endotracheal intubation -> Commence synchronized chest compressions -> Administer intravenous epinephrine.
Neonatal resuscitation follows a strict, step-wise algorithm focused heavily on establishing an airway and ventilation before addressing circulation. The sequence always begins with initial steps (warm, dry, position, stimulate). If the infant is apneic or the heart rate is < 100/min, positive pressure ventilation (PPV) is initiated. If the heart rate remains < 60/min despite effective PPV, the airway is secured (via endotracheal intubation) to ensure optimal gas exchange. Only after at least 30 seconds of effective ventilation with an advanced airway should chest compressions be started for a heart rate persistently < 60/min. Finally, if the heart rate remains < 60/min after 60 seconds of coordinated compressions and ventilation, epinephrine is administered via an umbilical venous catheter.

Step-by-Step Solution

1
Perform the initial steps of resuscitation.
The infant is warmed, dried, and stimulated.
These are the universal first actions for a non-vigorous newborn to clear the airway and attempt to stimulate spontaneous breathing.
2
Initiate positive pressure ventilation (PPV).
The lungs are artificially inflated.
Because the infant remains apneic and the heart rate is < 100/min (specifically 40/min), immediate PPV is required. Ventilation is the most critical and effective step in neonatal resuscitation.
3
Secure the airway with endotracheal intubation.
An endotracheal tube is placed.
With a heart rate persistently < 60/min despite PPV, securing an advanced airway is required to ensure optimal gas exchange before proceeding to chest compressions.
4
Commence chest compressions.
Circulation is mechanically supported.
Chest compressions are indicated only after at least 30 seconds of established, effective ventilation if the heart rate remains < 60/min.
5
Administer intravenous epinephrine.
Medication is delivered directly into the central circulation via the umbilical vein.
Epinephrine is given only if the heart rate remains < 60/min despite a full 60 seconds of coordinated chest compressions and adequate ventilation.

Key Concept

The Neonatal Resuscitation Program (NRP) algorithm prioritizes establishing effective ventilation above all other interventions. Even in the presence of severe bradycardia (HR < 60/min) at birth, ventilation steps must precede chest compressions and medication.
Rate this question

Topics

Neonatal Disorders

More questions from this topic