Question

multiple choice question
atelectasis is best defined as:
please select your answer...
a fibrotic scarring of the lung
b overexpansion of alveoli
c loss of lung volume due to alveolar collapse
d airspace consolidation due to infection

Explanation:

Atelectasis is a condition where there is a collapse of lung tissue, leading to reduced or absent gas exchange. This collapse is typically due to alveolar collapse.

• Option A: Fibrotic scarring of the lung is more related to conditions like pulmonary fibrosis, not atelectasis.
• Option B: Overexpansion of alveoli is associated with conditions like emphysema, not atelectasis.
• Option C: Loss of lung volume due to alveolar collapse is the correct definition of atelectasis.
• Option D: Airspace consolidation due to infection is more characteristic of pneumonia.

Answer:

C. Loss of lung volume due to alveolar collapse