Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/3

Click to flip

3 Cards in this Set

  • Front
  • Back
What is Hypoxic Vasoconstriction (HPV)?
A Reflex intrapulmonary feedback mechanism in inhomogeneous lungs to improve gas exchange and arterial oxygenation.
What is the difference between central hypoxemia and pulmonary hypoxemia?
In central hypoxemia vasodilation occurs in the general circulation it has the opposite effect on pulmonary arteries.
What efffect does HPV have on one-lung ventilation?
HPV:
1. decreases the cardiac output to the nonventilated lung from 40% (lateral position) to 20% to 25%.
2. Shunt flow increases from 10% to 27%
3. PaO2 decreases from >400mmHg to <200 mmHg