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MCN 568 Respiratory Study Questions 100% Correct
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MCN 568 Respiratory Study Questions
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MCN 568 Respiratory Study QuestionsName the 4 stages of fetal lung development - answer Embryonic, pseudo glandular,
canalicular, saccular/alveolar
Which period of fetal lung development is from 0-42 days of gestation? - answer
Embryonic
Which stage of fetal lung development lasts from 5-18 weeks of gestation and ends in
the vascular development being established? – answer Pseudo glandular
What stage of fetal lung development is characterized as the transition from pre-viable
to viable lungs? - answer Canalicular
What effect do poor maternal nutrition, chorioamnionitis, and antenatal glucocorticoids
have on lung/alveolar development? - answer Delay
What effect do thyroid hormone and antenatal corticosteroids have on lung/alveolar
development? - answer Stimulate
What does CCAM stand for? - answer Congenital cystic adenomatoid malformation
What is a normal tidal volume for an infant? - answer6-7 mL/kg
What term describes the airway volume not involved in gas exchange, which extends
from the nares to the terminal bronchioles? - answer Anatomic dead space
What is the term for the volume of gas in alveoli that are well-ventilated but under
perfused? - answer Alveolar dead space
What is the term used to define the volume of anatomic dead space plus alveolar dead
space? - answer Physiologic dead space
What condition in newborns results from impaired surfactant synthesis and/or function?
- answerRDS
What are the characteristic radiograph findings in RDS? - answerDiffuse
reticulogranular ("ground glass") pattern with air bronchograms
What is the INSURE technique? - answerA method of surfactant administration. Stands
for INtubate, SURfactant, Extubate
, What method of surfactant administration is achieved by using a small catheter, inserted
into the trachea, while an infant is on CPAP? - answerLISA method - Less Invasive
Surfactant Administration
What type of commonly used respiratory support is associated with the complications of
poor seal, nasal septum trauma, overinflation, and gastric distention? - answerCPAP
Which vent mode is described as delivering a mechanical breath that is triggered by the
start of a baby's spontaneous respiration? - answerSIMV - synchronized intermittent
mandatory ventilation
True or false? Weaning the rate is the best way to reduce respiratory support for an
infant in assist/control ventilation. - answerFalse. Pressure reduction is the means by
which A/C is weaned. This mode supports each breath the infant draws but does not
give a guaranteed rate unless the infant is breathing slower than the minimum control
rate set by the provider.
What is the purpose of pressure support in ventilation modes? - answerTo help the
infant overcome the work of breathing required to inhale through a narrow ETT, dead
space, and valves of the ventilator
What is the primary concern with using pressure targeted ventilation following surfactant
administration? - answerSudden increase in compliance can lead to increased tidal
volume - volutrauma and overexpansion
True or false? Pulmonary agenesis is usually unilateral. - answerTrue - 90% of cases
are unilateral
What does the acronym VACTERL stand for? - answerVertebral, Anal atresia, Cardiac
defect, TEF, Renal anomalies, Limb anomalies
85% of congenital diaphragmatic hernias occur on which side of the body? - answerLeft
An infant is having significant respiratory distress in the delivery room. Clinical signs fail
to improve with PPV. The infant has absent breath sounds on the left side, a scaphoid
abdomen, and heart sounds are strongest on the right side of the chest. What is the
most likely cause of this infant's respiratory distress? - answerCongenital diaphragmatic
hernia
What rare, often fatal abnormality is associated with the acronym ACD/MPV? -
answerAlveolar capillary dysplasia with misalignment of pulmonary veins
What condition, twice as common in males, is characterized by dilation of the lymphatic
vessels in multiple areas the lungs that leads to bilateral chylothoraces? -
answerCongenital pulmonary lymphangectasia (CPL)
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