02-05-2015, 01:57 AM
A 50-year-old man comes to the physician for a follow-up examination. One year ago, he was admitted to the hospital for treatment of acute respiratory distress syndrome (ARDS) associated with acute pancreatitis. Which of the following is most likely to be found in this patient with resolved ARDS?
A -Decreased alveolar dead space:tidal volume
B- Decreased concentrations of surfactant protein D
C -Decreased diffusing capacity for carbon monoxide (DLCO)
D- Increased concentrations of neutrophils in bronchoalveolar lavage fluid
E -Increased concentrations of surfactant protein D
F - Increased pulmonary capillary blood volume
why not B?
-I thought CO2 plays a role in ARDS and not CO.
Can anyone please explain the CO2 and CO role in ARDS?
A -Decreased alveolar dead space:tidal volume
B- Decreased concentrations of surfactant protein D
C -Decreased diffusing capacity for carbon monoxide (DLCO)
D- Increased concentrations of neutrophils in bronchoalveolar lavage fluid
E -Increased concentrations of surfactant protein D
F - Increased pulmonary capillary blood volume
why not B?
-I thought CO2 plays a role in ARDS and not CO.
Can anyone please explain the CO2 and CO role in ARDS?