Neonatal Assessment Flashcard 2
Rationale
B. Rationale: Pneumothorax is a common cause of respiratory distress in the newborn, caused by air leaking from the lungs into the thoracic cavity. As air accumulates in the pleural space, it will surround the lung, and if this causes significant restriction of lung motion, then it can cause respiratory distress. Pneumothorax can occur spontaneously, or it can be iatrogenic in nature after the administration of positive pressure ventilation (PPV).
Question
What common cause of respiratory distress in a newborn causes a leak of air into the pleural space, which potentially compresses the mediastinal structures to the contralateral side?
a. Pleural effusion
b. Pneumothorax
c. Pneumonia
d. Acute respiratory distress
Answer
b. Pneumothorax
Rationale
A. Rationale: The pulse oximeter measures the pulsations and absorbed red light from the capillaries. Its output is the estimated oxygen saturation of hemoglobin in blood at a given time (in percent) and the heart rate.
Question
What is the function of a pulse oximeter during the initial steps of neonatal resuscitation?
a. Measures the percentage of red blood cells saturated with oxygen
b. Displays the carbon dioxide content in arterial blood
c. Counts the number of pulsations to determine blood pressure
d. Evaluates whether the endotracheal tube is in place
Answer
a. Measures the percentage of red blood cells saturated with oxygen
Rationale
B. Rationale: The three vital characteristics that must be monitored when giving positive pressure ventilation for a neonate in need of resuscitation are heart rate, respiration, and oxygen saturation via pulse oximetry.
Question
What is the most important physiologic measurement the team must monitor when providing positive pressure ventilation for a newborn in need of resuscitation?
a. End-tidal carbon dioxide
b. Pulse oximetry
c. Arterial oxygen concentration
d. Electroencephalogram
Answer
b. Pulse oximetry
Rationale
A. Rationale: If after all the interventions have been administered correctly following the NRP algorithm and the newly born fails to achieve a heart rate of 60 bpm or higher, then pneumothorax and low blood volume must be considered.
Question
Which medical condition should be considered if the heart rate of a newly born fails to increase after correctly giving positive pressure ventilation, chest compressions, and epinephrine?
a. Pneumothorax
b. Preterm newborn
c. Down syndrome
d. Polyhydramnios
Answer
a. Pneumothorax
Rationale
D. Rationale: To respond to a neonatal resuscitation, the team must become aware of any perinatal risk factors by interviewing the attending obstetrician, pediatrician, and the patient or relatives. This interview guides them in planning for the potential needs of the newly born patient. Signficant antepartum risk factors include the following: gestational age < 36 weeks or > 41 weeks, pre-eclampsia, eclampsia, maternal hypertension, multiple gestation, fetal anemia, polyhydramnios, oligohydramnios, fetal hydrops, macrosomia, intrauterine growth restriction, fetal malformations, and no prenatal care.
Question
Which of the following are antepartum risk factors?
a. Twin gestation
b. No prenatal care
c. Fetal hydrops
d. All of the above
Answer
d. All of the above
Rationale
B. Rationale: The DOPE mnemonic lists the common causes of sudden deterioration of a newly intubated newborn and includes the following: displaced endotracheal tube, obstructed endotracheal tube, pneumothorax, and equipment failure.
Question
Which of the following can be a cause of sudden deterioration in an intubated newly born?
a. Pneumonia
b. Pneumothorax
c. Encephalitis
d. All of the above
Answer
b. Pneumothorax
Rationale
B. Rationale: Ultrasound is a cost-efficient method for detecting a fetal intrapartum pleural effusion. It is routinely obtained in every obstetric check-up and does not involve unnecessary radiation, such as when a chest X-ray or CT scan is used. Due to the logistical requirements of the MRI procedure, a sonogram is preferred.
Question
Which of the following imaging modalities is most appropriately used to detect an intrapartum pleural effusion?
a. Chest X-ray
b. Ultrasound
c. CT scan
d. MRI
Answer
b. Ultrasound
Rationale
C. Rationale: Intrapartum risk means that certain events during labor are more likely to lead to neonatal resuscitation. The following are intrapartum risks for neonatal resuscitation: emergency cesarean delivery, forceps or vacuum-assisted delivery, breech presentation, category II/III fetal heart pattern, maternal general anesthesia, placental abruption, intrapartum bleeding, chorioamnionitis, narcotics administered to mother within 4-hours of delivery, shoulder dystocia, meconium-stained amniotic fluid, and prolapsed umbilical cord.
Question
Which of the following intrapartum risk factors indicates an increased risk for neonatal resuscitation?
a. Polyhydramnios
b. No prenatal check-ups
c. Placental abruption
d. All of the above
Answer
c. Placental abruption
Rationale
C. Rationale: Maternal narcotics expose the newborn through the maternal-fetal circulation. Opioids can cause severe respiratory depression, a high-risk situation. The neonatal resuscitation team must be ready to immediately apply a facemask and administer positive pressure ventilation at delivery. It may also be necessary to provide endotracheal intubation if the newborn presents with prolonged apnea.
Question
Which of the following maternal exposures can cause a depressed respiratory drive in the newborn?
a. Tetanus toxoid vaccination
b. Chorioamnionitis
c. Opioids
d. Antibiotics
Answer
c. Opioids
Rationale
D. Rationale: A fundamental aspect of starting chest compressions during neonatal resuscitation is that the patient is not responding despite adequate ventilation. Healthcare providers must know how to assess if the patient is being administered adequate ventilation by observing a visible chest rise after each assisted breath.
Question
Which of the following observations indicates adequate positive pressure ventilation?
a. Strong cry
b. Involuntary movements
c. Change in skin color
d. Visible chest rise
Answer
d. Visible chest rise