Author Question: What happens as an infant with a CDH creates an increased negative inspiratory pressure in order to ... (Read 43 times)

Starlight · **on:** Jul 16, 2018

What happens as an infant with a CDH creates an increased negative inspiratory pressure in order to breathe?

a. Meconium is drawn deeper into the airways.
b. Lung compliance is improved.
c. More of the gastrointestinal structures are sucked into the thorax.
d. Lungs fill and expand to full capacity.

Question 2

Which of the following is true of the diffusing capacity test (DLCO) findings in a patient with COPD?

a. Normal in all cases
b. Decreased in emphysema
c. Decreased in chronic bronchitis
d. Increased in all cases

dlook33 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

C
As the infant with a CDH and respiratory distress generates a more negative inspiratory pressure to breathe, more of the gastrointestinal structures are sucked into the thorax. This worsens the existing problem.

Answer to Question 2

B
Because of alveolar destruction, patients with emphysema will have decreased gas diffusion. A decreased DLCO is a classic diagnostic sign of emphysema. The DLCO is normal in pure chronic bronchitis.