NUR 2206 Oxygenation

NUR 2206 Oxygenation
1. Ventilation
Answer
- Inspiration and Expiration
DETERMINED BY
- Compliance
- Airway resistance
- Accessory muscles
- Force of exhalation
- Increased CO2 in arterial blood (PaCO2)
- Decreased PaCO2 also influences inspiration to a lesser degree
2. Compliance
Answer
Stretch ability of lungs and alveolar sacs
3. Diffusion
Answer
Movement of O2 an CO2 between alveoli and capillaries (from higher pressure to lower
pressure)
4. Perfusion
Answer
Delivery of oxygenated blood to body tissues
NEED
- Adequate pulmonary circulation
- Adequate hemoglobin to carry O2
- Adequate cardiac output to transport blood to body tissues
5. Atelectasis
Answer
A complete or partial collapse of a lung or lobe of a lung