FON Flashcards
What is oxygenation?
Oxygenation is a process that comprises both inspiration and expiration and the exchange of gases in the body.
What is ventilation?
Ventilation is the process of moving gas into and out of the lung through inspiration and expiration.
What is inspiration?
Inspiration is the movement of oxygen into the lung.
What is expiration?
Expiration is the movement of carbon dioxide out of the lung.
What is perfusion?
Perfusion is the process of intake of oxygen by tissue and return of carbon dioxide into the lung.
What is atelectasis?
Atelectasis is the collapse of the alveoli which prevents air exchange.
What is hypoxia?
Hypoxia is a decreased oxygen level in the tissue.
What is hypoxemia?
Hypoxemia is a decreased oxygen level in the blood.
Where are peripheral chemoreceptors located?
Peripheral chemoreceptors of respiration are in the carotid and aortic bodies.
What are peripheral chemoreceptors sensitive to?
Peripheral chemoreceptors are more sensitive to PaO2.
Where are central chemoreceptors located?
Central chemoreceptors of respiration are located in the ventrolateral surface of the medulla oblongata.
What are central chemoreceptors sensitive to?
Central chemoreceptors are more sensitive to changes in H+ ion.
What is capnography?
Capnography is the noninvasive measurement of the carbon dioxide level in the expired gas, known as end tidal CO2.
What does humidification of oxygen do?
Humidification of oxygen helps to prevent the dryness of the airway.
What should be considered when administering oxygen to a COPD patient?
In a COPD patient, decreased level of oxygen in the blood is the respiratory drive, so do not administer oxygen at high flow rate.
What percentage of oxygen is in atmospheric air?
Atmospheric air contains 21% oxygen.
What percentage of oxygen is in expired air?
Expired air contains 16% oxygen.
What risk does a neonate face when exposed to high levels of oxygen?
A neonate exposed to high levels of oxygen may develop retinopathy of prematurity.
Is oxygen a flammable gas?
Yes, oxygen is a flammable gas; there is a risk of fire accident.
