Soru

Zorluk: OrtaNeonatal Disorders

A 39-week gestation neonate is delivered via emergency cesarean section due to a severe placental abruption. At birth, the infant is profoundly limp, cyanotic, and exhibits no spontaneous respiratory effort. Arrange the following steps of neonatal resuscitation in the correct chronological sequence, assuming the infant exhibits no clinical improvement and the heart rate persistently remains below 60/min despite an adequate duration of each successive intervention.

  1. 1Place the infant under a radiant warmer, dry thoroughly, and stimulate
  2. 2Initiate mask positive pressure ventilation (PPV) and apply a pulse oximeter
  3. 3Perform endotracheal intubation
  4. 4Begin chest compressions coordinated with positive pressure ventilation
  5. 5Administer epinephrine via an umbilical venous catheter

Cevap

The correct sequence prioritizes establishing ventilation before circulation: 1. Place under warmer, dry, and stimulate; 2. Initiate mask PPV; 3. Perform endotracheal intubation; 4. Begin chest compressions; 5. Administer umbilical venous epinephrine.
The Neonatal Resuscitation Program (NRP) algorithm follows a strict stepwise progression that prioritizes ventilation over circulation. The sequence begins with initial warming and stimulation. If apnea or bradycardia persists, positive pressure ventilation (PPV) is initiated. If the heart rate remains < 60/min despite effective PPV, the airway should be secured via endotracheal intubation, followed immediately by coordinated chest compressions. Pharmacologic intervention with epinephrine is strictly reserved for neonates whose heart rate remains < 60/min despite 60 seconds of high-quality chest compressions and adequate ventilation.

Adım Adım Çözüm

1
Assess the infant immediately at birth.
The infant is limp and apneic, requiring immediate standard initial steps.
Drying and stimulating under a warmer prevents heat loss and provides tactile stimulation for breathing.
2
Evaluate the response to initial steps.
The scenario states no clinical improvement (infant remains apneic, heart rate < 60/min), prompting positive pressure ventilation.
Neonatal bradycardia is almost exclusively asphyxial; establishing functional residual capacity via PPV is the primary treatment.
3
Evaluate the response to PPV.
The heart rate remains < 60/min despite effective PPV, necessitating an advanced airway.
Intubation ensures optimal oxygen delivery and airway security before beginning chest compressions.
4
Initiate circulatory support.
Chest compressions are started.
Compressions are only indicated when the heart rate remains < 60/min despite adequate ventilation.
5
Evaluate the response to chest compressions.
The heart rate remains < 60/min after 60 seconds of CPR, requiring pharmacotherapy.
Epinephrine is administered via an umbilical venous catheter to stimulate myocardial function as a final resuscitative step.

Anahtar Kavram

Neonatal Resuscitation Program (NRP) Algorithm
Tahmini Süre:1m 15s
Bu soruyu puanla