V/Q mismatch — Flashcards

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

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

In response to exercise, the V/Q ratio from apex to base becomes more _____ (even or uneven)

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

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

The _____ of a healthy lung is the largest contributor of alveolar dead space

What type of V/Q mismatch occurs due to pulmonary embolus?_____

The normal average value for V/Q is _____

Does **100% O2** improve PaO2 in **V/Q mismatch**?

Rank the following variables for zone 2 of the lung: PA, Pa, and Pv _____