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Oxygenation PT 2
Funds Chapter 35
Question | Answer |
---|---|
What factors influence pulmonary function? | developmental stage, environment, individual and lifestyle factors, medications, and pathophysiological states |
Why are premature infants at risk for Respiratory Distress Syndrome? | premature infants (<35 weeks gestation) do not have fully developed alveolar surfactant system |
What is surfactant? | keeps air sacs inflated for effective respiration |
atelectasis | collapse of alveoli |
Why are infants born at term at risk for oxygenation problems? | 1. lower airway structures are small and immature, allowing infection to spread rapidly 2. airways are narrow 3. CNS is immature 4. immature immune system 5. putting things in mouth |
Why are toddlers still at high risk for URIs? | 1. the tonsils and adenoids are relatively large 2. exposed to new infections at school/daycare |
How does Stress affect pulmonary function? | stress response stimulates release of catecholamines from the Sympathetic Nervous System resulting in increased tendency to blood clot |
allergy | hypersensitivity or over-response to an antigen; causes inflammation |
How does air quality affect pulmonary function? | air pollution triggers respiratory problems that interefere with oxygenation. |