Normal V/Q distribution — Flashcards

Flashcard 1: What type of V/Q mismatch occurs due to airway obstruction? _____

Answer: Shunt (perfusion but no ventilation)

Flashcard 2: Increased VA/Q results in _____

Answer: alveolar dead space

Flashcard 3: What is the ideal V/Q ratio for adequate gas exchange? _____

Answer: 1 (ventilation matches perfusion)

Flashcard 4: Both ventilation and perfusion are _____ at the base of the lung than at the apex of the lung

Answer: greater

Flashcard 5: _____ is perfusion of lung regions that are not ventilated (V/Q = 0)

Answer: Shunt

Flashcard 6: In certain pathologic situations, the physiologic dead space may become greater than the anatomic dead space, suggesting a _____ defect

Answer: ventilation/perfusion (V/Q)

Flashcard 7: _____ is perfusion of lung regions that are not ventilated (V/Q = 0)

Answer: Shunt

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=8] https://onlinemeded.org?ref=anki 

Flashcard 8: The V/Q ratio at the base of the lung is normally _____, indicating wasted perfusion

Answer: 0.6

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=6] https://onlinemeded.org?ref=anki 

Flashcard 9: In zone _____ of the lung, high alveolar pressure may compress the capillaries and reduce blood flow in this zone

Answer: 1

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=6] https://onlinemeded.org?ref=anki 

Flashcard 10: In the lungs, hypoxia causes vaso-_____

Answer: constriction

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=4] https://onlinemeded.org/spa/pulmonology?ref=anki