The major pathologic or structural changes associated with cystic ...

[jman1234]

The major pathologic or structural changes associated with cystic fibrosis include:
 
  1. partial airway obstruction leading to hyperinflation.
  2. bronchospasm.
  3. thick, tenacious mucus.
  4. total airway obstruction leading to atelectasis.
  a. 1, 2
  b. 3, 4
  c. 1, 3, 4
  d. 1, 2, 3, 4

Question 2

What is the consequence of meconium aspiration if there is a ball-valve effect in the small airways?
 
  a. Air trapping on exhalation
  b. Apnea of prematurity
  c. Air trapping on inhalation
  d. Bronchiectasis

[tandmlomax84]

Answer to Question 1

C
Patients with cystic fibrosis have thick, tenacious mucus. This can lead to either a partial airway obstruction (and hyperinflation) or total airway obstruction (and atelectasis). Bronchospasm is only occasionally found.

Answer to Question 2

A
A ball-valve effect in the small airways will cause air trapping on exhalation. In other words, air will be inhaled but cannot be fully exhaled. Apnea of prematurity and bronchiectasis are not related to the ball-valve effect.