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TESTBANK FOR NEONATAL AND PEDIATRIC RESPIRATORY CARE 6TH EDITION BY WALSH/ALL CHAPTERS COMPLETE 1-36 | COMPLETE SOLUTION | GUIDE A+.
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  • NEONATAL AND PEDIATRIC RESPIRATORY CARE
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  • Neonatal and Pediatric Respiratory Care

TESTBANK FOR NEONATAL AND PEDIATRIC RESPIRATORY CARE 6TH EDITION BY WALSH/ALL CHAPTERS COMPLETE 1-36 | COMPLETE SOLUTION | GUIDE A+.TESTBANK FOR NEONATAL AND PEDIATRIC RESPIRATORY CARE 6TH EDITION BY WALSH/ALL CHAPTERS COMPLETE 1-36 | COMPLETE SOLUTION | GUIDE A+.TESTBANK FOR NEONATAL AND PEDIATRIC...

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  • October 28, 2024
  • 383
  • 2024/2025
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  • testbank for neonatal and pediatric respiratory ca
  • neonatal and pediatric respiratory care 6th editio

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  • TEST BANK FOR Neonatal & Pediatric Respiratory Care. by Brian K. Walsh 6th Edition All Chapters| 100% Verified Answers| 2024/2025|978-0323793094
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,Chapter 1: Fetal Lung Development Test Bank iY iY iY iY iY iY




MULTIPLE CHOICE iY




1. Which of the following phases of human lung development is characterized by
iY iY iY iY iY iY iY iY iY iY iY




theformation of a capillary network around airway passages?
iY iY iY iY iY iY iY iY iY




a. Pseudoglandular

b. Saccular

c. Alveolar

d. Canalicular



ANS: D iY




The canalicular phase follows the pseudoglandular phase, lasting from approximately 17 weeks
iY iY iY iY iY iY iY iY iY iY iY




to 26 weeks of gestation. This phase is so named because of the appearance of vascular
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




channels,or capillaries, which begin to grow by forming a capillary network around the air
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




passages.
iY




During the pseudoglandular stage, which begins at day 52 and extends to week 16 of
iY iY iY iY iY iY iY iY iY iY iY iY iY iY




gestation, the airway system subdivides extensively and the conducting airway system
iY iY iY iY iY iY iY iY iY iY iY




develops, ending with the terminal bronchioles. The saccular stage of development, which
iY iY iY iY iY iY iY iY iY iY iY iY




takes place from weeks29 to 36 of gestation, is characterized by the development of sacs that
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




later become alveoli.
iY iY iY




During the saccular phase, a tremendous increase in the potential gas- exchanging surface
iY iY iY iY iY iY iY iY iY iY iY iY




areaoccurs. The distinction between the saccular stage and the alveolar stage is arbitrary.
iY iY iY iY iY iY iY iY iY iY iY iY iY iY




The alveolar stage stretches from 39 weeks of gestation to term. This stage is represented
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




by the establishment of alveoli.
iY iY iY iY iY




REF: pp. 3-5 iY iY




2. Regarding postnatal lung growth, by approximately what age do most of the alveoli iY iY iY iY iY iY iY iY iY iY iY iY




thatwill be present in the lungs for life develop?
iY iY iY iY iY iY iY iY iY iY




a. 6 months
iY

,b. 1 yeariY




c. 1.5 years iY




d. 2 years
iY




ANS: C iY




Most of the postnatal formation of alveoli in the infant occurs over the first 1.5 years of life.
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




At 2years of age, the number of alveoli varies substantially among individuals. After 2 years
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




of age, males have more alveoli than do females. After alveolar multiplication ends, the
iY iY iY iY iY iY iY iY iY iY iY iY iY iY




alveoli continueto increase in size until thoracic growth is completed.
iY iY iY iY iY iY iY iY iY iY iY




REF: p. 6 iY iY




3. The respiratory therapist is evaluating a newborn with mild respiratory distress due
iY iY iY iY iY iY iY iY iY iY iY




totracheal stenosis. During which period of lung development did this problem develop?
iY iY iY iY iY iY iY iY iY iY iY iY iY




a. Embryonal

b. Saccular

c. Canalicular

d. Alveolar



ANS: A iY




The initial structures of the pulmonary tree develop during the embryonal stage. Errors in
iY iY iY iY iY iY iY iY iY iY iY iY iY




development during this time may result in laryngeal, tracheal, or esophageal atresia or
iY iY iY iY iY iY iY iY iY iY iY iY iY




stenosis. Pulmonary hypoplasia, an incomplete development of the lungs characterized by an
iY iY iY iY iY iY iY iY iY iY iY iY




abnormally low number and/or size of bronchopulmonary segments and/or alveoli, can
iY iY iY iY iY iY iY iY iY iY iY




develop during the pseudoglandular phase. If the fetus is born during the canalicular phase
iY iY iY iY iY iY iY iY iY iY iY iY iY iY




(i.e., prematurely), severerespiratory distress can be expected because the inadequately
iY iY iY iY iY iY iY iY iY iY iY




developed airways, along with insufficient and immature surfactant production by alveolar
iY iY iY iY iY iY iY iY iY iY iY




type II cells, gives rise to the constellation of problems known as infant respiratory distress
iY iY iY iY iY iY iY iY iY iY iY iY iY iY iY




syndrome.
iY

, REF: i Y p. 6 iY




4. Which of the following mechanisms is (are) responsible for the possible
iY iY iY iY iY iY iY iY iY iY




associationbetween oligohydramnios and lung hypoplasia?
iY iY iY iY iY iY




I. Abnormal carbohydrate metabolism iY iY




II. Mechanical restriction of the chest wall iY iY iY iY iY




III. Interference with fetal breathing iY iY iY




IV. Failure to produce fetal lung liquid iY iY iY iY iY




a. I and III only
iY iY iY




b. II and III only
iY iY iY




c. I, II, and IV only
iY iY iY iY




d. II, III, and IV only
iY iY iY iY




ANS: D iY




Oligohydramnios, a reduced quantity of amniotic fluid present for an extended period of time,
iY iY iY iY iY iY iY iY iY iY iY iY iY




with or without renal anomalies, is associated with lung hypoplasia. The mechanisms by
iY iY iY iY iY iY iY iY iY iY iY iY iY




which amniotic fluid volume influences lung growth remain unclear. Possible explanations
iY iY iY iY iY iY iY iY iY iY iY




for reducedquantity of amniotic fluid include mechanical restriction of the chest wall,
iY iY iY iY iY iY iY iY iY iY iY iY iY




interference with fetalbreathing, or failure to produce fetal lung liquid. These clinical and
iY iY iY iY iY iY iY iY iY iY iY iY iY iY




experimental observations possibly point to a common denominator, lung stretch, as being a
iY iY iY iY iY iY iY iY iY iY iY iY iY




major growth stimulant.
iY iY iY




REF: pp. 6-7iY iY




5. What is the purpose of the substance secreted by the type II pneumocyte?
iY iY iY iY iY iY iY iY iY iY iY iY

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