COPD Initiative — Respiratory Health Association™ of Metropolitan Chicago

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Term Definition
Obliterative bronchiolitisa process that occurs after a transplantation in which lung tissue grows out of control blocks the airways or changes their shape so that they cannot function properly
 
Obstructiveis a respiratory problem caused by increased airway resistance that reduces the amount of air inhaled in each breath and the oxygen that reaches the pulmonary arteries
 
Osteoporosisa condition characterized by decrease in bone mass with decreased density and enlargement of bone spaces producing porosity and brittleness. Osteoporosis predisposes a person to fractures, which are often slow to heal and heal poorly. It is more common in older adults, particularly post-menopausal women and in patients on steroids. Unchecked osteoporosis can lead to changes in posture, physical abnormality, particularly the form of hunched back known colloquially as “dowager’s hump”, and decreased mobility
 
Oximetermedical device that indirectly measures the amount of oxygen in a patient’s blood. It is often attached to a medical monitor so staff can directly read a patient’s oxygenation at all times
 
Oxygencolorless, odorless and tasteless gas that makes up about 20% of the air we breathe (and at least half the weight of the entire solid crust of the earth) and which combines with most of the other elements to form oxides. Oxygen is essential to human, animal and plant life
 
Oxygen saturationmeasures the percentage of hemoglobin binding sites in the bloodstream occupied by oxygen
 


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