What is cyanosis?
A. bluish color due to lack of oxygen
B. yellowing of the eyes
C. a episode of coughing
D. a productive cough
Preview next quiz:
COPD is a combination of these two diseases
A. sinusitis and laryngitis
B. asthma a bronchitis
C. viral pneumonia and asthma
D. chronic bronchitis and emphysema
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