Cluster IV (neonatal and pediatric) Flashcards
The RT is evaluating a newborn with mild respiratory distress due to tracheal stenosis. During which period of lung development did this problem develop?
A. Embryonal
B. Saccular
C. Canalicular
D. Alveolar
A. Embryonal
What is the purpose of the substance secreted by the type 2 pneumocyte?
A. To increase the gas exchange surface area
B. To reduce the surface tension
C. To maintain the lung elasticity
D. To preserve the volume of the amniotic fluid
B. To reduce the surface tension
Which of the ff tests of the amniotic fluid have been shown to be sensitive indicators of lung maturity
A. levels of prednisone
B. Levels of epidermal growth factor
C. Levels of prostaglandin
D. Levels of phosphatidglycerol and phosphatidycholine
D. Levels of phosphatidglycerol and phosphatidycholine
Approximately how much fetal lung fluid is secreted daily
A. About 150 to 200 mL
B. About 250 to 300 mL
C. About 350 to 400 mL
D. About 450 to 500 mL
B. About 250 to 300 mL
A pregnant woman is coming for an early prenatal evaluation and wants to know if she can listen to baby’s heartbeat. How early can be the fetal heartbeat be detected?
A. Day 8
B. Day 22
C. Day 42
D. Day 62
B. Day 22
Which of the ff. organs is considered to be the first complete form?
A. Heart
B. Brain
C. Kidney
D. Lungs
A. Heart
What is the function of the Wharton’s jelly inside the umbilical cord
A. To help provide nutrition to the fetus
B. To help prevent the vessels inside the cord from kinking
C. To deliver oxygen from placenta to the fetus
D. To regulate the temperature between the fetus and the mother
B. To help prevent the vessels inside the cord from kinking
Which of the ff embryonic germ layers gives information to the respiratory system?
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Periderm
A. Endoderm
How long after birth should it take for the ductus arteriosus to close completely
A. 24 hours
B. 48 hours
C. 96 hours
D. 1 week
C. 96 hours
Which of the ff event causes cessation of right-to-left shunt through the foreamen ovale?
A. Increased level of PO2 in the blood of the neonate
B. Decreased level of PCO2 in the blood of the newborn
C. Increased systemic vascular resistance
D. Removal of the placenta, causing lowered blood volume returning to the right side of the fetal heart
C. Increased systemic vascular resistance
At what gestational age is extra uterine life possible?
A. 22 to 38 weeks
B. 24 to 36 weeks
C. 38 to 42 weeks
D. 20 to 23 weeks
C. 38 to 42 weeks
When does surfactant production begin?
A. 12 to 18 weeks
B. 24 to 26 weeks
C. 28 to 32 weeks
D. 32 to 42 weeks
B. 24 to 26 weeks
Where does gas exchange occur in the fetus?
A. Lungs
B. Heart
C. Placenta
D. Umbilical Cord
C. Placenta
How many umbilical veins and how many umbilical arteries?
A. 2 umbilical arteries and 1 umbilical vein
B. 1 umbilical artery and 2 umbilical veins
C. 2 umbilical arteries and 2 umbilical veins
D. 1 umbilical artery and 1 umbilical vein
A. 2 umbilical arteries and 1 umbilical vein
Which of the ff maternal focus is/are related to the health of the fetus and outcomes of pregnancy?
1. Maternal age
2. Prior maternal disease
3. Maternal drug use
4. Maternal birth history
A. 1, 2, and 3
B. 2 and 4
C. 1,2,3 and 4
D. 3, and 4
C. 1,2,3 and 4
Which of the ff techniques would you recommend to assess the state of pulmonary maturity before birth
A. Blood gas analysis
B. Ultrasonography
C. Maternal History
D. Amniocentesis
D. Amniocentesis
Temporary drops in the fetal heart rate during uterine contractions are known as
A. Fetal stress
B. Decelerations
C. Primary apnea
D. Secondary Bradycardia
B. Decelerations
Ate decelerations are consistent with which of the ff conditions
1. Uteroplacental insufficiency
2. Umbilical cord compression
3. Normal Contraction
4. Maternal Bradycardia
A. 1 and 2 only
B. 2 and 3 only
C. 3 and 4 only
d. 1,2,3,4
A. 1 and 2 only
Which of the ff. pH values is associated with fetal asphyxia?
A. Less than 7.1
B. Less than 7.2
C. Less than 7.3
D. Less than 7.4
B. Less than 7.2
At 1 min after birth a newborn infant exhibits the ff heart rate of 65 beats per min, a slow and irregular respiratory rate , some muscle flexion, a grimace when nasally suctioned and a pink body with blue extremities. What is the infant’s 1 minute APGAR
A. 3
B. 4
C. 5
D. 6
C. 5
Which of the ff methods is useful in determining gestational age of the newborn?
A. Dubowitz
B. Adams
C. Apgar
D. Perkinson
A. Dubowitz
Tachypnea in the newborn is defined as a respiratory rate greater than what level?
A. 40/min
B. 50/min
C. 60/min
D. 70/min
C. 60/min
You notice drawing (retractions) of chest wall muscle and tissue between the ribs, and above below the sternum, all occurring during inspiration. Which of the following conclusions is most consistent with this observation?
A. Airway resistance (RAW) is decreased
B. Lung Compliance (CL) is decreased
C. Work of breathing is decreased
D. Normal
B. Lung Compliance (CL) is decreased
You detect a “bounding” peripheral pulse on a newborn infant. Based on this findings, what should you suspect?
A. Patent ductus arteriosus
B. Peripheral vasoconstriction
C. Coarctation of the Aorta
D. Peripheral vasodilation
A. Patent ductus arteriosus
You notice paradoxical breathing. Which of the following conclusion is most consistent with this observation?
A. Airway resistance (RAW) is decreased
B. Lung Compliance (CL) is increased
C. Work of breathing is increased
D. Normal
C. Work of breathing is increased
What is the normal arterial PO2 in healthy infants?
A. Greater than 50 mmHg
B. Greater than 60 mmHg
C. Greater than 70 mmHg
D. Greater than 80mmHg
B. Greater than 60 mmHg
Which of the following O2 modalities would you recommend for a toddler needing a low FiO2?
A. Mist tent
B. Cannula
C. Oxy-hood
D.Mask
B. Cannula
Which of the ff L:S ratios indicates the stable surfactant production and mature lungs
A. 2:1
B. 1:1
C. 1:2
D. 2:3
A. 2:1
In which of the following conditions may bronchial hygiene therapy be considered for infants or children?
1. Hyaline Membrane Disease
2. Cystic Fibrosis
3. Epiglottitis
4. Bronchopulmonary dysplasia
A. 2, 3, and 4
B. 2 and 4
C. 1,2 and 4
D. 1,2,3,4
B. 2 and 4
Which of the ff sizes (internal diameter) of ETTs would you select to intubate a 4-year old child?
A. 3mm
B. 4mm
C. 5mm
D. 7mm
C. 5mm
Which of the ff. vacuum settings would you use to perform nasotracheal suctioning of a 5 year old child
A. -100 to -120 mmHg
B. -80 to -100 mmHg
C. -40 to -60 mmHg
D. -60 to -80 mmHg
B. -80 to -100 mmHg
What FiO2 should be used in neonates prior to endotracheal suctioning?
A. Same FiO2 on the ventilator
B. FiO2 of 100% for 2 minutes only to prevent ROP
C. FiO2 10% to 15% higher than FiO2 set in the ventilator
D. Low FiO2 to prevent ROP
C. FiO2 10% to 15% higher than FiO2 set in the ventilator
During resuscitation of a newborn, after 15 to 30 sec of positive pressure ventilation, what should the clinician do?
A. Evaluate Heart Rate
B. Suction the mouth, then the nose
C. Begin chest compressions
D. Initiate medications
A. Evaluate Heart Rate
Signs of infant respiratory distress that initiate a potential need for CPAP include which of the ff?
1. Cyanosis
2. Radiograph indicating hyaline membrane disease or respiratory distress syndrome
3. Grunting
4. Severe retractions
A. 3 and 4 only
B. 1, 2, and 3 only
C. 2 and 4 only
D. 1, 2, 3, 4
D. 1, 2, 3, 4
Which of the ff is considered a limitation o HFNC?
A. It does not meet patient’s flow needs
B. The amount of airway positive pressure cannot be measured
C. It does not provide for appropriate CO2 clearance
D. It does not reduce the use of noninvasive positive pressure ventilation
B. The amount of airway positive pressure cannot be measured
In a high frequency ventilation (HFV), Co2 elimination depends mainly on which of the ff?
A. Pressure amplitude
B. Mean airway pressure
C. High frequency rate
D. sinusoidal waveform
A. Pressure amplitude
What physiologic effect does inhaled nitric oxide have on the lung?
A. Pulmonary vasoconstriction
B. Pulmonary vasodilation
C. Smooth muscle dilation
D. Improved mucociliary clearance
B. Pulmonary vasodilation
What is the recommended dose of inhaled NO?
A. 10ppm
B. 20ppm
C. 30ppm
D.40ppm
B. 20ppm
Which of the following statements describe truncus arteriosus?
A. The pulmonary arteries arises from the left ventricle, and the aorta stems from the right ventricle
B. A large VSD allows total mixing of blood from the two ventricles
C. If SVR decreases relative to PVR, bloodflow will be shunted from right to left, bypassing the lungs
D. All of the above
D. All of the above
What factor is responsible for closure of the foramen ovale?
A. Increased PaO2
B. Increase pressure of the left side of the heart
C. Blood flowing through the lungs
D. High pulmonary vascular resistance
B. Increase pressure of the left side of the heart
What radiographic features is the therapist likely to see on a typical chest x-ray of an infant with MAS?
A. Ground glass appearance
B. Complete whiteout
C. Decreased lung volume
D. Patchy areas of atelectasis
D. Patchy areas of atelectasis
The therapist is treating a child with TOF who appears to be having a “tet” spell. What should the therapist suggest to treat this event?
A. Beta blockers
B. Knee-chest position to increase SVR
C. Morphine sulfate
D. all of the above
B. Knee-chest position to increase SVR
The therapist setting pulse oximetry to determine the presence of right-to-left shunt in an infant suspected of having a heart defect. Where should the therapist place the pulse ox probe to obtain the most accurate measure of preductal oxygen saturation?
A. Any finger of the right hand
B. Any finger of the left hand
C. Left earlobe
D. Lower extremities
A. Any finger of the right hand
Which of the ff physiologic mechanism need to be in place to ensure adequate systemic perfusion in infants with hydroplastic left heart syndrome (HLHS)?
A. Presence of an ASD
B. Presence of mitral regurgitation
C. Adequate left atrial function
D. Presence of PDA
D. Presence of PDA
Blood samples are simultaneously obtained from both radial artery and the umbilical artery, and the arterial partial pressure of oxygen value from the umbilical artery sample. On basis of this findings, which of the ff. conditions does the neonate likely have?
A. PPHN
B. MAS
C. Neonatal pneumonia
D. RDS
A. PPHN
What is the typical type of airway obstruction that occurs with MAS?
A. Ball Valve
B. Complete
C. No obstruction
D. Airway Inflammation
A. Ball Valve
How should the therapist interpret a preductal to postductal PaO2 difference of 8mmHg in a neonate?
A. Unreliable area
B. Absence of a ductal shunting
C. Presence of ductal shunting
D. Inconclusive data
B. Absence of a ductal shunting
Which of the following congenital cardiac anomalies is classified as conotruncal, associated with a “boot-shape” appearance of the heart
A. Tetralogy of Fallot
B. Transposition of the great vessels
C. Coarcation of Aorta
D. Atrioventricular canal defect
A. Tetralogy of Fallot
Which of the following medications should be the therapist recommend for an infant with apnea of prematurity experiencing episodes of apnea?
A. Caffeine
B. Benzodiazepines
C. Antibiotics
D. Doxapram
A. Caffeine
Which of the ff blood gas parameters should the therapist target when managing patients with PPHN
A. SaO2 > 95%
B. PaCO2 35-45 mmHg
C. pH 7.35- 7.45
D. All of the above
D. All of the above
8 hours after being born, a baby presents with cyanosis despite administration of adequate ventilation, tachypnea, and retractions. Which of the following conditions should be therapist suspect is affecting the newborn?
A. Normal baby
B BPD
C. PPHN
D. GBS pneumonia
C. PPHN
At birth, what factor causes dilation of the pulmonary vascular bed and a decrease in the pulmonary vascular resistance?
A. Increased arterial partial pressure of oxygen ( PaO2)
B. Decreased arterial partial pressure of carbon dioxide (PaCO2)
C. Lung inflation
D. Circulating indomethacin
A. Increased arterial partial pressure of oxygen ( PaO2)
How should the therapist interpret a lecithin to sphingomyelin (L:S) ratio of 2:1?
A. The presence of lung maturity
B. A gestational age of less than 28 weeks
C. The likelihood of RDS
D. Laboratory error
A. The presence of lung maturity
The therapist is treating a child with a congenital heart defect who is unresponsive to oxygen therapy. Although the chest x ray is relatively normal, the heart defects is more consistent with this description?
A. Complete transposition of the great arteries
B. Coarcation of the aorta
C. Truncus arteriosus
D. Tetralogy of Fallot
A. Complete transposition of the great arteries
Which of the following strategies can be used to increase pulmonary vascular resistance (PVR) in infants with hypoplastic left heart syndrome (HLHS)
A. FiO2 <0.21
B. Induce hypocapnia
C. Administer indomethacin
D. Close the PDA
A. FiO2 <0.21
Which of the ff methods is involved in the management of a PDA?
A. Increasing the circulating volume
B. Maintaining /optimizing the hematocrit at the low end of normal hemoglobin level
C. Administering indomethacin
D. Administering digoxin
C. Administering indomethacin
For which of the ff. congenital cardiac defects may spontaneous closure of the ductus arteriosus be catastrophic?
A. Tetralogy of Fallot with pulmonary atresia
B. Hypoplastic left heart syndrome
C. Severe contraction of the aorta
D. all of the above
D. all of the above
The therapist is reviewing the chest radiograph of a newborn, preterm infant and observes diffuse, fine reticulogranular densities, which provide a ground-glass appearance. On the basis of these radiographic findings, which of the following conditions should the therapist suspect is present?
A. Persistent pulmonary hypertension of the newborn
B. Respiratory distress syndrome
C. Bronchopulmonary dysplasia
D. Pulmonary interstitial emphysema
B. Respiratory distress syndrome
In addition to Group B Streprococcus, which of the following microorganisms are responsible for nosocomial pneumonia aquired after delivery
A. RSV
B. Escherichia coli
C. Pseudomona spp.
D. Haemophilus Influenzae
B. Escherichia coli
What is the significance of an infant with RDS demonstrating a grunt during each exhaustion
A. Resolution of the RDS
B. An effort to maintain its functional residual capacity (FRC)
C. An attempt to overcome increased airway resistance
D. Impending death
B. An effort to maintain its functional residual capacity (FRC)