UPDATE 2025-2026
age relates factors affecting oxygenation - Answers -age related - plaque accumulates and
affects gas diffusion , osteoporosis - makes chest become barrel shaped, diminished chest
expansion, alveoli enlarge decreasing surface area available for gas exchange, functional cilia is
reduced decreasing effectiveness of cough
other factors that affect oxygenation - Answers physiological, musculoskeletal -chest wall,
curvature of the spine, movement- exercise , lifestyle- obesity, smoking, stress and anxiety,
environment
Pneumonia - Answers lung infection caused by - aspiration in pharynx, inhalation of microbes,
hematogenous spread from somewhere else in body
types of pneumonia - Answers 1 community
2 hospital
3 Aspiration - abnormal entry and secretions into lower airways of compromised patients
4 opportunistic - immunocompromised
care for pneumonia - Answers -extra fluids to keep mucous membranes moist
-small nourishing meals to replace calories lost to energy of breathing
- high fowlerspositioning to promote oxygenation
-incentive spirometry/ deep breathing
-teach patient to take full course of antibiotics
-humidified oxygen to loosen secretions
COPD -Emphysema & Chronic Bronchitis - Answers emphysema - alveoli become abnormally
enlarged and are destroyed therefore narrowing airways
chronic bronchitis - obstructive pulmonary disease of larger airways
- air becomes trapped leading to dyspnea, hypoventilation, impaired gas exchange
- may experience cough, excessive sputum, dyspnea, barrel shaped chest from air trapped in
lungs
asthma - Answers chronic inflammation of the airways causing obstruction therefore occurring
episodes of wheezing, coughing, dyspnea, chest tightness