V/Q Assessment Flashcards
1
Q
What are the primary causes of increased dead space?
A
Pulmonary vessel blockage PE Change in cardiac output Pulmonary hypertension PEEP ventilation Emphysema Shallow breathing
2
Q
What are the primary causes of shunt?
A
Heart failure, pneumonia, ARDS
3
Q
What are the primary causes of V/Q mismatch?
A
Increased airway resistance (asthma, bronchitis)
Hypoventilation
Diffusion defect
Congenital malformations
