V/Q scan principles — Flashcards

V/Q scan principles — Flashcards

V/Q scan principles — Flashcards
10 flashcards
Read Study NotesQuestions
#1

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

#2

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

#3

In a patient with a pulmonary emboli, V/Q lung scan shows mismatch due to abnormal _____

#4

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

#5

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

#6

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

#7

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

#8

In the lungs, hypoxia causes vaso-_____

#9

Certain organisms that thrive in high O2 (e.g. TB) flourish in the _____ of the lung

#10

Is the A - a gradient normal, increased, or decreased, in response to V/Q mismatch? _____

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V/Q scan principles Flashcards | V/Q mismatch Study Cards - OnCourse