NURS 262: OXYGENATION EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE
Oxygenation requires the integration of 3 systems
- Respiratory System
- Hematologic System
- Cardiovascular System
Respiration
process of gas exchange between the individual and the environment
Four components of respiration
- Ventilation/Breathing
- Alveolar-Capillary Gas Exchange/Diffusion
- Transport of O2/Perfusion
- Systemic Diffusion
Ventilation (Breathing)
movement of air in and out of the lungs
*inhale/exhale
Ventilation (breathing) consist of ?
Oxygen entering the lungs when inhaling and CO2 being excreted from the lungs when
exhaling
Adequate ventilation is needed for?
Oxygenation of the blood, and ultimately of organs and tissues
, Alveolar-Capillary Gas Exchange (Diffusion)
diffusion of O2 and CO2 between alveoli and pulmonary capillaries
Transport of O2 and CO2 (perfusion)
- Blood flow/transport of O2 and CO2 between tissues and lungs.
- The oxygen-carrying capacity of the blood.
- 97% of O2 is carried to tissues by combining with Hgb in RBCs.
Systemic diffusion
movement of O2 and CO2 between the systemic capillaries and tissues
Factors affecting respiratory function
age, environment, lifestyle, health status, medications, stress
Development Factors of Respiratory Function in Older Adults
- Reduced lung expansion, less alveolar inflation
- Difficulty expelling mucus or foreign material
- Declining immune response
- GERD-increasing risk for aspiration
- Chemoreceptors respond more slowly
- Diminished ability to increase ventilation when oxygenation demands increase
Environment Factors affecting Respiratory Function
Altitude, heat, cold, air pollution
Medication factors affecting respiratory function
benzodiazepines, antianxiety, barbiturates and narcotics
Stress factors affecting Respiratory Function
causes both psychological and physiological responses to that affect oxygenation
WITH COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE
Oxygenation requires the integration of 3 systems
- Respiratory System
- Hematologic System
- Cardiovascular System
Respiration
process of gas exchange between the individual and the environment
Four components of respiration
- Ventilation/Breathing
- Alveolar-Capillary Gas Exchange/Diffusion
- Transport of O2/Perfusion
- Systemic Diffusion
Ventilation (Breathing)
movement of air in and out of the lungs
*inhale/exhale
Ventilation (breathing) consist of ?
Oxygen entering the lungs when inhaling and CO2 being excreted from the lungs when
exhaling
Adequate ventilation is needed for?
Oxygenation of the blood, and ultimately of organs and tissues
, Alveolar-Capillary Gas Exchange (Diffusion)
diffusion of O2 and CO2 between alveoli and pulmonary capillaries
Transport of O2 and CO2 (perfusion)
- Blood flow/transport of O2 and CO2 between tissues and lungs.
- The oxygen-carrying capacity of the blood.
- 97% of O2 is carried to tissues by combining with Hgb in RBCs.
Systemic diffusion
movement of O2 and CO2 between the systemic capillaries and tissues
Factors affecting respiratory function
age, environment, lifestyle, health status, medications, stress
Development Factors of Respiratory Function in Older Adults
- Reduced lung expansion, less alveolar inflation
- Difficulty expelling mucus or foreign material
- Declining immune response
- GERD-increasing risk for aspiration
- Chemoreceptors respond more slowly
- Diminished ability to increase ventilation when oxygenation demands increase
Environment Factors affecting Respiratory Function
Altitude, heat, cold, air pollution
Medication factors affecting respiratory function
benzodiazepines, antianxiety, barbiturates and narcotics
Stress factors affecting Respiratory Function
causes both psychological and physiological responses to that affect oxygenation
