Bronchial Asthma Overview

Which of the following is a typical pathological feature of asthma?

Thickening of the basement membrane due to subepithelial collagen deposition

What is the principal symptom of asthma?

Wheezing attacks and episodic shortness of breath

What is the volume of gas remaining in the lung after maximal expiration called?

Residual volume (RV)

Which blood test is more useful for diagnosing asthma?

Sputum examination Signup and view all the answers

What is a common complication of severe asthma?

Respiratory failure Signup and view all the answers

Which of the following is a cause of COPD?

Low birth weight Signup and view all the answers

What is the typical manifestation of emphysema?

(Shortness of breath) Dyspnoea Signup and view all the answers

Which test is used to measure airflow obstruction in COPD?

(Pulmonary function tests) FEV1 Signup and view all the answers

(In between the attacks), how may patients with asthma appear?

(Normal) Signup and view all the answers

(FVC) stands for which of the following in respiratory function tests?

(Volume of gas that can be forcefully exhaled from lungs after maximal inspiration) Signup and view all the answers

(T lymphocytes, and mast cells) are infiltrated in which part in asthma?

(Sub mucosa) Signup and view all the answers

What is the aim of treatment for COPD?

Restore normal or best possible lung function Signup and view all the answers

What are the three characteristics of asthma?

Airflow limitation, airway hyper-responsiveness, and bronchial infiltration Signup and view all the answers

What is the main cause of extrinsic asthma?

Definite external cause and positive skin-prick reactions Signup and view all the answers

What is the prevalence trend of asthma in many countries?

Increasing prevalence, particularly in the second decade of life Signup and view all the answers

In which type of asthma does the serum level of Ig E usually remain high?

Extrinsic asthma Signup and view all the answers

What are the main components of bronchial infiltration in asthma?

Eosinophils, T lymphocytes, and mast cells Signup and view all the answers

What is a characteristic of intrinsic asthma?

'Late onset' with no identifiable causative agent Signup and view all the answers

What is the primary etiology of asthma according to the text?

Genetic predisposition and airway hyperresponsiveness Signup and view all the answers

What is the key symptom of asthma mentioned in the text?

Cough and wheeze Signup and view all the answers

'Airway hyper-responsiveness' refers to the tendency of the airways to:

Be sensitive to a wide range of stimuli Signup and view all the answers