Oxygenation pg. 1240-1260 Flashcards
What structures comprises the upper respiratory system?
Mouth, Nose, Pharynx, and Larynx
What structures comprises the lower respiratory system?
Bronchi, Bronchioles, Alveoli, Pulmonary Capillary Network, and Pleural Membranes
What are the factors that facilitate adequate ventilation?
- Clear airways
- Intact CNS and Respiratory Center
- Intact Thoracic Cavity Capable of Expanding and Contracting
- Adequate Pulmonary Compliance and Recoil
What is atelectasis?
Collapse of a portion of the lung
As people age, what factors effect respiratory function?
Chest wall and airways become more rigid.
The mount of exchanged air is decreased.
The cough reflex and cilia action are decreased.
Osteoporosis, if present, adequate lung expansion may be compromised.
What occurs to an individual’s respiratory system when at high altitude?
- Lower PO2 breathed in
- Increased respiratory rate
- Increased cardiac rate
- Increased respiratory depth
What does a patent airway mean?
Open Airway
What is a Stridor?
What is it caused by?
A harsh, high pitched sound that may be heard during inspiration.
It is caused by a lower airway obstruction.
What is Hypoxemia?
Reduced Oxygen levels IN THE BLOOD
What is Hypoxia?
Reduced Oxygen levels IN THE TISSUES
What condition most frequently causes Barrel Chest?
Emphysema- a type of COPD involving damage to the air sacs (alveoli) in the lungs
What positions should you place a client who are confined to a bed with dypnea to give them maximum chest expansion?
Semi-Fowler’s or High-Fowler’s
What are vibrations?
A series of vigorous quiverings produced by hands that are placed flat against the client’s chest wall and is sued after percussion to increase the turbulence of the exhaled air and thus loosen thick secretions.
Why are nasal cannula used?
Doesn’t interfere with the client’s ability to eat or talk, relatively comfortable, and permits movement.
What is the concentration of oxygen used with a nasal cannula?
What is the flow rate?
O2 Concentration 24% - 45 %
Flow Rate 2 - 6 L/min.
