ACTUAL Questions and CORRECT
Answers
What is gas exhcange? - CORRECT ANSWER - The process by which oxygen is transported to
the cells and carbon dioxide is removed from the cells.
What is impaired gas exchange and what can cause it? - CORRECT ANSWER - The diffusion of
oxygen and carbon dioxide become impaired.
This can be due to ineffective ventilation, reduced capacity for gas transportation (reduced Hgb), and
inadequate perfusion.
What can happen during impaired gas exchange? - CORRECT ANSWER - The lungs become over
saturated with fluid, inflammation of the alveoli, hardening of the alveoli, and the collapse or destruction.
What are risk factors for impaired gas exchange? - CORRECT ANSWER - Age
Smoking! #1 cause
Immunosuppression
Reduced state of cognition
Brain injury
Prolonged immobility
Chronic conditions (COPD/Cystic Fibrosis)
True or False! Reduced cognition and brain injury increase chances of aspiration? - CORRECT
ANSWER - True!
What factors make infants at risk for impaired gas exchange? - CORRECT ANSWER - Low
amount of RBC's
Fetal hemoglobin
High metabolic rate
Less surface area
, Narrow airways
What makes young children more at risk for impaired gas exchange? - CORRECT ANSWER -
Small airways
Narrow branching of airways
Easily obstructed by mucus or objects
What makes older adults more at risk for impaired gas exchange? - CORRECT ANSWER - Stiffer
chest wall
Less elasticity
Dilation of alveoli
Decreased surface area
Weak immune response
What are signs and symptoms of impaired gas exchange? - CORRECT ANSWER - Cough
Shortness of breath
Chest pain
Anxiety
Restlessness
Mucous
Wheezing
Crackles
What are some health promotion topics for impaired gas exchange? - CORRECT ANSWER - Quit
smoking
Immunizations
Infection control (hand washing)
Medications
What bacteria causes TB to be a highly communicable disease? - CORRECT ANSWER -
Myobacterium tuberculosis