CPAP :) Flashcards
What is oxygenation?
involves the movement of oxygen from the atmosphere to the alveoli and subsequent diffusion into the blood
What is ventilation?
relates to the removal of carbon dioxide from the alveoli after diffusion from the blood
What diseases do CPAP work on?
COPD, bronchitis and emphysema and CHF
How does CPAP work?
places patients airway under a constant level of pressure throughout the resp cycle causing fluid and other obstruction to be “pushed back” where they belong
CPAP lowers the amount patients going to the hospital having to be put in the ______ !!!
ICU
Increased pressure in the airways allows for better _______…..
DISTRIBUTION OF GASES
What does maintaining the inspiratory and expiratory pressures above normal result in? (in terms of lung inflation)
BETTER Lung compliance and decreased airway ressitance
CPAP allows for a better _______ ratio!
V/Q
When the alveoli stay open, ___ _________ can be doubled increasing oxygen and decreasing carbon dioxide levels in the blood which reduces ________ !!
gas exchange
hypoxia
Technically speaking…. does CPAP really pushed edema fluid out of the lungs???
NOOO!!
With CPAP, the resultant of positive intrathoracic pressure decreases _______.
venous return, reduces the right sided CO to a level that the left can be equal or even exceed
CPAP overcomes ________
CPAP prevents _______ during exhalation
CPAP improves ______________ values
CPAP can avoid _________ and mechanical _______
inspiratory work
airway collapse
arterial blood gas
intubation / ventilation
What are some complications of CPAP?
pulmonary pressure that are TOO high may cause a decrease in blood volume circulating throughout the lungs resulting in a decrease CO ( fall in BP)
over distension of the alveoli resulting in lung overdistention
decreased compliance
may increase secretions or dry upper airways
Do we need to explain what we are doing to the patient?
YES
What are some physical complications could come when using CPAP?
facial hair
dentures
air leak
