Hypoxic pulmonary vasoconstriction US Medical PG Flashcards - Medical Study Cards
Master Hypoxic pulmonary vasoconstriction with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Hypoxic pulmonary vasoconstriction Flashcard Deck - 10 Cards
Flashcard 1: What type of V/Q mismatch occurs due to pulmonary embolus?_____
Answer: Dead space*
Flashcard 2: Does 100% O2 improve PaO2 in V/Q mismatch due to physiologic dead space? _____
Answer: Yes, assuming < 100% dead space
Flashcard 3: Rank the following variables for zone 2 of the lung: PA, Pa, and Pv _____
Answer: Pa > PA > Pv
Flashcard 4: A decrease in PAO2 causes a hypoxic _____ that shunts blood away from poorly ventilated regions of the lung
Answer: vasoconstriction
Flashcard 5: What is the major factor determining autoregulation of blood flow to the lungs?_____
Answer: Hypoxia (causes vasoconstriction)
Flashcard 6: _____ 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 7: 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 8: 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 9: 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
Flashcard 10: Certain organisms that thrive in high O2 (e.g. TB) flourish in the _____ of the lung
Answer: apex
Extra:
Watch associated Bootcamp video [https://app.bootcamp.com/med-school/pulmonology/videos/blood?index=6]
https://onlinemeded.org?ref=anki
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