100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
COMPLETE TEST BANK: NEONATAL AND PEDIATRIC RESPIRATORY CARE 5TH EDITION BY BRIAN K. WALSH PHD LATEST UPDATE. $17.39   Add to cart

Exam (elaborations)

COMPLETE TEST BANK: NEONATAL AND PEDIATRIC RESPIRATORY CARE 5TH EDITION BY BRIAN K. WALSH PHD LATEST UPDATE.

 2 views  0 purchase
  • Course
  • NEONATAL AND PEDIATRIC RESPIRATORY CARE
  • Institution
  • NEONATAL AND PEDIATRIC RESPIRATORY CARE

COMPLETE TEST BANK: NEONATAL AND PEDIATRIC RESPIRATORY CARE 5TH EDITION BY BRIAN K. WALSH PHD LATEST UPDATE. PEDIATRIC 100% pass

Preview 4 out of 383  pages

  • October 31, 2024
  • 383
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:
  • NEONATAL AND PEDIATRIC RESPIRATORY CARE
  • NEONATAL AND PEDIATRIC RESPIRATORY CARE
avatar-seller
Lectdavian
Neonatal and Pediatric
n n




Respiratory Care 5th Edition
n n n n




Walsh Test Bank A+
n n n n

, Chapter 1: Fetal Lung Development Test Bank n n n n n n




MULTIPLE CHOICE n




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



formation of a capillary network around airway passages?
n n n n n n n n




a. Pseudoglandular

b. Saccular

c. Alveolar

d. Canalicular



ANS: D n




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



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



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



passages.
n


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



the airway system subdivides extensively and the conducting airway system develops, ending
n n n n n n n n n n n n


with the terminal bronchioles. The saccular stage of development, which takes place from
n n n n n n n n n n n n n


weeks29 to 36 of gestation, is characterized by the development of sacs that later become
n n n n n n n n n n n n n n n n



alveoli.
n



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



occurs. The distinction between the saccular stage and the alveolar stage is arbitrary. The
n n n n n n n n n n n n n n



alveolar stage stretches from 39 weeks of gestation to term. This stage is represented by the
n n n n n n n n n n n n n n n n


establishment of alveoli.
n n n




REF: pp. 3-5 n n




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



will be present in the lungs for life develop?
n n n n n n n n n




a. 6 months
n

,b. 1 year
n




c. 1.5 years
n




d. 2 years
n




ANS: C n




Most of the postnatal formation of alveoli in the infant occurs over the first 1.5 years of life. At 2
n n n n n n n n n n n n n n n n n n n



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


males have more alveoli than do females. After alveolar multiplication ends, the alveoli
n n n n n n n n n n n n n



continueto increase in size until thoracic growth is completed.
n n n n n n n n n n




REF: p. 6n n




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


tracheal stenosis. During which period of lung development did this problem develop?
n n n n n n n n n n n n




a. Embryonal

b. Saccular

c. Canalicular

d. Alveolar



ANS: A n




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



development during this time may result in laryngeal, tracheal, or esophageal atresia or stenosis.
n n n n n n n n n n n n n n



Pulmonary hypoplasia, an incomplete development of the lungs characterized by an abnormally
n n n n n n n n n n n n



low number and/or size of bronchopulmonary segments and/or alveoli, can develop during the
n n n n n n n n n n n n n



pseudoglandular phase. If the fetus is born during the canalicular phase (i.e., prematurely),
n n n n n n n n n n n n n



severerespiratory distress can be expected because the inadequately developed airways, along
n n n n n n n n n n n n


with insufficient and immature surfactant production by alveolar type II cells, gives rise to the
n n n n n n n n n n n n n n n



constellation of problems known as infant respiratory distress syndrome.
n n n n n n n n n

, REF: p. 6 n n




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


between oligohydramnios and lung hypoplasia?
n n n n n




I. Abnormal carbohydrate metabolism n n




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




III. Interference with fetal breathing n n n




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




a. I and III only
n n n




b. II and III only
n n n




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




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




ANS: D n




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


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



amniotic fluid volume influences lung growth remain unclear. Possible explanations for
n n n n n n n n n n n


reducedquantity of amniotic fluid include mechanical restriction of the chest wall, interference
n n n n n n n n n n n n n



with fetalbreathing, or failure to produce fetal lung liquid. These clinical and experimental
n n n n n n n n n n n n n n



observations possibly point to a common denominator, lung stretch, as being a major growth
n n n n n n n n n n n n n n



stimulant.
n




REF: pp. 6-7
n n




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

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Lectdavian. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $17.39. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84146 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$17.39
  • (0)
  Add to cart