Week 3 Flashcards
What is normal ventilation?
Inspiration and expiration of air to and from the lungs.
What are the 4 stages of the respiratory cycle?
Inspiratory flow, inspiratory pause, expiratory flow, and expiratory pause.
During the pause phase does gas exchange occur?
No
What creates negative pressure?
Downward movement of the diaphragm.
What is hypoxemia?
A partial pressure of oxygen in the atrial blood of less than 80 mm Hg.
What indicates severe hypoxemia?
PaO2 of less than 60
What can nasal catheters and prongs commonly used for?
Oxygen compromised animals and long term therapy
How can you make an oxygen collar with an E collar?
Tape the oxygen tube to the base of the collar and clear plastic wrap in front of the collar.
What do you need to change 21% oxygen to?
40-50%
What is mechanical ventilation?
The act of controlling breathing by using a machine.
What does mechanical ventilation do for the lungs?
Provides positive pressure.
What is the depth of ventilation?
How much volume of air you are breathing in a minute.
When should you ventilate?
If the patient does not have the muscular ability to control breathing.
How must the animal maintain stable oxygen saturation?
By moving oxygen from the lungs to the tissues.
What is the best indicator of oxygen therapy effectiveness?
Atrial blood gases.
