CCRN Neonatal questions and
answers graded a+
Nastassia is a one-hour-old neonate, born at 39 weeks gestation
by primary cesarean birth for fetal bradycardia. She was
hypotonic at birth with gasping respirations and a heart rate of
80. She was provided bulb suctioning and bag mask ventilation
and recovered by five minutes of life. On admission to the NICU,
her temperature was 36° C. After admission to the NICU, her
arterial blood gas is pH: 7.19, PCO2: 63, HCO3: 14. The correct
interpretation of this blood gas is - ANSWERS>>>>>mixed
respiratory and metabolic acidosis.
Which statement is most accurate when identifying the
pathophysiology of transient tachypnea of the newborn (TTN)? -
ANSWERS>>>>>Labor enhances the process of fetal lung fluid
absorption
During which phase of fetal pulmonary development do the type
II pneumocytes become numerous and begin to produce and
store surfactant? - ANSWERS>>>>>Canalicular phase
An absence of air flow despite respiratory effort is an example of
which apnea classification? - ANSWERS>>>>>Obstructive apnea
,Continuous positive airway pressure (CPAP) improves
oxygenation by - ANSWERS>>>>>improving the ventilation-
perfusion ratio.
The functional residual capacity in a newborn infant should be
approximately - ANSWERS>>>>>30 ml/kg.
A 29 week gestation infant who displays symptoms of a
pulmonary hemorrhage should be evaluated for -
ANSWERS>>>>>patent ductus arteriosus.
The most significant role of surfactant in neonatal lung
development is to - ANSWERS>>>>>maintain alveolar stability by
decreasing surface tension.
Most respiratory disorders result in a ventilation-perfusion
mismatch. Ideally, the ventilation-perfusion ratio should be -
ANSWERS>>>>>1 to 1
A neonate at 12 hours of life with meconium aspiration syndrome
who has been intubated since birth suddenly develops severe
respiratory distress, tachycardia, and hypotension. Which
diagnosis would be least likely to be in the differential? -
ANSWERS>>>>>Intraventricular hemorrhage
,Which of the following conditions is not an air leak? -
ANSWERS>>>>>Pneumatosis intestinalis
The decision to intubate an infant born through thick meconium
should be based on the infant's - ANSWERS>>>>>response to
stimulation and bag and mask ventilation.
The type of patient-triggered ventilator that applies a constant
pressure during inspiration and terminates with a decrease in air
flow, thereby decreasing the work of breathing, is a(n) -
ANSWERS>>>>>pressure support ventilation.
Neonates receiving surfactant are at increased risk of
developing - ANSWERS>>>>>pulmonary hemorrhage.
A discrepancy greater than 10 mm Hg between the blood
pressure in the upper and lower extremities is indicative of
which defect? - ANSWERS>>>>>Coarctation of the aorta
In order to pass a pulse oximetry screening for critical
congenital heart disease (CCHD), which oxygenation and
percentage of variance is required in the right hand and foot? -
ANSWERS>>>>>Less than 95% O2 saturation and greater than 3%
variance
, A neonate at 10 hours of age is found to be cyanotic and without
respiratory distress symptoms. The EKG and chest x-ray are
normal. The administration of oxygen is not relieving the
cyanosis. The healthcare provider should have a high index of
suspicion for which of the following defects? -
ANSWERS>>>>>Transposition of the great vessels
A right-to-left shunt will be seen with -
ANSWERS>>>>>pulmonary stenosis.
Appropriate nutritional management of the neonate with
congestive heart failure is best achieved by which of the
following? - ANSWERS>>>>>Individualizing to minimize energy
consumption
At approximately _____ weeks of gestation the heart has
developed a fully functioning electrical conduction system. -
ANSWERS>>>>>10
It is important to evaluate the neonate with critical pulmonary
stenosis for - ANSWERS>>>>>symptoms of right-sided
congestive heart failure.
One of the medications given to cause constriction and closure of
the ductus arteriosus in the neonate is -
ANSWERS>>>>>indomethacin.
answers graded a+
Nastassia is a one-hour-old neonate, born at 39 weeks gestation
by primary cesarean birth for fetal bradycardia. She was
hypotonic at birth with gasping respirations and a heart rate of
80. She was provided bulb suctioning and bag mask ventilation
and recovered by five minutes of life. On admission to the NICU,
her temperature was 36° C. After admission to the NICU, her
arterial blood gas is pH: 7.19, PCO2: 63, HCO3: 14. The correct
interpretation of this blood gas is - ANSWERS>>>>>mixed
respiratory and metabolic acidosis.
Which statement is most accurate when identifying the
pathophysiology of transient tachypnea of the newborn (TTN)? -
ANSWERS>>>>>Labor enhances the process of fetal lung fluid
absorption
During which phase of fetal pulmonary development do the type
II pneumocytes become numerous and begin to produce and
store surfactant? - ANSWERS>>>>>Canalicular phase
An absence of air flow despite respiratory effort is an example of
which apnea classification? - ANSWERS>>>>>Obstructive apnea
,Continuous positive airway pressure (CPAP) improves
oxygenation by - ANSWERS>>>>>improving the ventilation-
perfusion ratio.
The functional residual capacity in a newborn infant should be
approximately - ANSWERS>>>>>30 ml/kg.
A 29 week gestation infant who displays symptoms of a
pulmonary hemorrhage should be evaluated for -
ANSWERS>>>>>patent ductus arteriosus.
The most significant role of surfactant in neonatal lung
development is to - ANSWERS>>>>>maintain alveolar stability by
decreasing surface tension.
Most respiratory disorders result in a ventilation-perfusion
mismatch. Ideally, the ventilation-perfusion ratio should be -
ANSWERS>>>>>1 to 1
A neonate at 12 hours of life with meconium aspiration syndrome
who has been intubated since birth suddenly develops severe
respiratory distress, tachycardia, and hypotension. Which
diagnosis would be least likely to be in the differential? -
ANSWERS>>>>>Intraventricular hemorrhage
,Which of the following conditions is not an air leak? -
ANSWERS>>>>>Pneumatosis intestinalis
The decision to intubate an infant born through thick meconium
should be based on the infant's - ANSWERS>>>>>response to
stimulation and bag and mask ventilation.
The type of patient-triggered ventilator that applies a constant
pressure during inspiration and terminates with a decrease in air
flow, thereby decreasing the work of breathing, is a(n) -
ANSWERS>>>>>pressure support ventilation.
Neonates receiving surfactant are at increased risk of
developing - ANSWERS>>>>>pulmonary hemorrhage.
A discrepancy greater than 10 mm Hg between the blood
pressure in the upper and lower extremities is indicative of
which defect? - ANSWERS>>>>>Coarctation of the aorta
In order to pass a pulse oximetry screening for critical
congenital heart disease (CCHD), which oxygenation and
percentage of variance is required in the right hand and foot? -
ANSWERS>>>>>Less than 95% O2 saturation and greater than 3%
variance
, A neonate at 10 hours of age is found to be cyanotic and without
respiratory distress symptoms. The EKG and chest x-ray are
normal. The administration of oxygen is not relieving the
cyanosis. The healthcare provider should have a high index of
suspicion for which of the following defects? -
ANSWERS>>>>>Transposition of the great vessels
A right-to-left shunt will be seen with -
ANSWERS>>>>>pulmonary stenosis.
Appropriate nutritional management of the neonate with
congestive heart failure is best achieved by which of the
following? - ANSWERS>>>>>Individualizing to minimize energy
consumption
At approximately _____ weeks of gestation the heart has
developed a fully functioning electrical conduction system. -
ANSWERS>>>>>10
It is important to evaluate the neonate with critical pulmonary
stenosis for - ANSWERS>>>>>symptoms of right-sided
congestive heart failure.
One of the medications given to cause constriction and closure of
the ductus arteriosus in the neonate is -
ANSWERS>>>>>indomethacin.
