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Questions and Answers
What is bronchial asthma primarily defined as?
What is bronchial asthma primarily defined as?
- Consistent chest pain
- Recurrent and reversible shortness of breath (correct)
- Permanent airway restriction
- A chronic cough
Which of the following is not a typical cause of airway narrowing in asthma?
Which of the following is not a typical cause of airway narrowing in asthma?
- Bronchospasm
- Edema
- Tumor growth (correct)
- Inflammation
What symptom is commonly associated with asthma?
What symptom is commonly associated with asthma?
- Wheezing (correct)
- Hearing loss
- Blurred vision
- Coughing up blood
At what age does asthma onset occur in about 50% of patients?
At what age does asthma onset occur in about 50% of patients?
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What term is used to describe a sudden and dramatic onset of asthma symptoms?
What term is used to describe a sudden and dramatic onset of asthma symptoms?
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Study Notes
Definition and Pathophysiology of Asthma
- Asthma is a recurrent and reversible condition characterized by shortness of breath
- The airways of the lung (bronchi and bronchioles) become narrow due to:
- Bronchospasm
- Inflammation
- Edema
- This narrowing leads to the production of viscous (sticky) mucus in the bronchial mucosa
- The resulting obstruction of airflow in the airways prevents carbon dioxide from leaving the air spaces and oxygen from getting in
Symptoms and Onset of Asthma
- Symptoms of asthma include wheezing and difficulty breathing
- A sudden and dramatic onset of symptoms is referred to as an asthma attack
- In 50% of patients, asthma onset occurs before 10 years of age
- In about 80% of patients, asthma onset occurs before 40 years of age
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