Author Question: All of the following conditions can lead to atelectasis EXCEPT: a. chronic obstructive pulmonary ... (Read 23 times)

moongchi · **on:** Jul 16, 2018

All of the following conditions can lead to atelectasis EXCEPT:

a. chronic obstructive pulmonary disease (COPD).
b. acute respiratory distress syndrome (ARDS).
c. pleural effusion.
d. pneumothorax.

Question 2

All of the following amniotic fluid lab findings would indicate mature fetal lungs EXCEPT:

a. S:A ratio is >55.
b. PG is present.
c. L:S ratio is 2:1.
d. L:S ratio is 1:2.

ktidd · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

A
COPD does not usually lead to atelectasis. All of the other listed conditions are restrictive in nature and can lead to atelectasis.

Answer to Question 2

D
An L:S ratio of 1:2 (anything less than a 2:1 ratio) would indicate immature lungs and increased risk of RDS. Mature fetal lungs are indicated by an S:A ratio of >55, the presence of PG, and an L:S ratio of 2:1 or greater.