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COMPREHENSIVE GUIDE TO ASTHMA, COPD,
AND INTERSTITIAL LUNG DISEASES
What is asthma characterized by? - ANS - Reversible airway narrowing and chronic inflammation of the airways. What are the common symptoms of asthma? - ANS - Wheezing, breathlessness, chest tightness, and coughing, particularly at night or in the early morning. What causes airway obstruction in asthma? - ANS - Contraction of the airway smooth muscle and swelling of the airway wall. What are the main pathophysiological features of asthma? - ANS - Airflow obstruction (reversible), airway hyper-responsiveness, and airway inflammation. What triggers airway narrowing in asthma? - ANS - Environmental irritants (e.g., allergens, dust mites), physical activity (e.g., exercise- induced), or other diseases/infections.
What happens during an asthma exacerbation? - ANS - Difficulty in releasing air from the lungs on expiration, leading to air trapping in the alveoli. What is the equal pressure point (EPP) in relation to asthma? - ANS - During an asthma attack, the EPP moves closer to the alveoli, causing dynamic airway collapse. What are some permanent changes in the airways due to chronic asthma? - ANS - Increased smooth muscle, increased bronchial blood vessels, increased thickening of collagen layers, and decreased distensibility of the airway. What are common allergens that trigger asthma? - ANS - Pollen, animal dander, and dust mites. What are common irritants that can trigger asthma symptoms? - ANS - Strong smells, air pollutants, and tobacco smoke. What are some other triggers for asthma? - ANS - Upper respiratory infections, changes in weather, exercise, and strong emotional expressions.
What are some strategies to manage asthma triggers in daily life? - ANS
- Minimize exposure to allergens, use air purifiers, and maintain a clean environment. What is the importance of cleaning in asthma management? - ANS - Regular cleaning helps reduce allergens and irritants that can trigger asthma symptoms. What is the relationship between exercise and asthma? - ANS - Exercise can trigger asthma symptoms, especially in cold weather. How can emotional stress impact asthma? - ANS - Strong emotional expressions such as stress and anxiety can trigger asthma symptoms. What is the role of mucus in asthma? - ANS - Mucus hyper-secretion can contribute to airway obstruction. What are goblet cells and their relevance to asthma? - ANS - Goblet cells can become hyperplastic in asthma, leading to increased mucus production. What is eosinophilic inflammation in asthma? - ANS - It refers to the presence of eosinophils in the airway, contributing to inflammation and airway hyper-responsiveness.
What is asthma and how does it affect airflow? - ANS - Asthma is an obstructive respiratory condition characterized by the narrowing of the airways, which obstructs airflow and causes symptoms such as dyspnoea, wheeze, chest tightness, and cough. What are the two main types of asthma? - ANS - The two main types of asthma are Episodic and Chronic. Describe Episodic Asthma. - ANS - Episodic Asthma has no signs or symptoms between attacks, which can be spontaneous or triggered by allergens, exercise, or infection. Attacks can range from mild to severe and may last from hours to days. What are the symptoms of Chronic Asthma? - ANS - Chronic Asthma symptoms include wheeze, chest tightness, shortness of breath (SOB), usually occurring at night or early morning, and productive cough of mucoid sputum. How is asthma confirmed? - ANS - Asthma is confirmed by demonstrating variable airway obstruction through spirometry, along with a compatible clinical history and symptoms.
What is the predicted global impact of COPD by 2030? - ANS - COPD is predicted to be the fourth leading cause of death worldwide by 2030. What are the two main disease processes involved in COPD? - ANS - The two main disease processes in COPD are Chronic Bronchitis and Emphysema. How does Chronic Bronchitis affect the airways? - ANS - Chronic Bronchitis impacts the bronchi and bronchioles, causing obstruction due to impaired mucociliary function and airway hypertrophy. What is Emphysema and how does it affect lung tissue? - ANS - Emphysema involves the loss of alveolar walls and destruction of associated capillary beds, impacting distal lung tissue and resulting in the joining of adjacent alveoli. What is the typical overlap in COPD diagnoses? - ANS - Most patients with COPD exhibit considerable overlap between the conditions of Chronic Bronchitis and Emphysema. What is the importance of objective measurement in asthma management? - ANS - Objective measurement of airflow is crucial because many individuals with asthma underestimate the degree of airway narrowing.
What symptoms might indicate a severe asthma attack? - ANS - Severe asthma attacks may present with an inability to breathe, potentially without an audible wheeze if airway narrowing is extreme. What is the role of physiotherapists in managing vocal cord dysfunction? - ANS - Physiotherapists should consider vocal cord hygiene and early referral to speech pathology if vocal cord dysfunction is suspected. What is the relationship between asthma symptoms and airway obstruction? - ANS - Asthma symptoms may not always correlate with the degree of airway obstruction, as individuals can experience significant symptoms despite limited airflow obstruction. How can asthma symptoms vary in individuals? - ANS - Individuals with asthma can experience varying symptoms and severity, and may not always be aware of the extent of their airway obstruction. What is the significance of spirometry in asthma management? - ANS - Spirometry is used to diagnose asthma, assess symptoms after bronchodilator use, and monitor patient progress.
What is bronchiectasis? - ANS - A respiratory condition where the airways are permanently damaged, widened, and floppy due to persistent infection. What are the two main groups of aetiology for bronchiectasis? - ANS - 1. Congenital causes (e.g., cystic fibrosis). 2. Acquired causes (e.g., post pneumonia, measles, whooping cough). What is the impact of persistent chest infections on bronchiectasis? - ANS - They cause repeated damage to the airways, leading to dilation and difficulty in clearing secretions, which increases the risk of further infections and inflammation. What management strategies are important for individuals with bronchiectasis? - ANS - Improving airway hydration, promoting mucociliary transport, and proactive management of infections with antibiotics and medical treatment. What happens to the airways during expiration in COPD patients? - ANS
- The unsupported airways narrow and collapse, leading to increased functional residual capacity (FRC) as air gets trapped in the lungs.
What is the role of the capillary beds in relation to alveoli in emphysema? - ANS - The loss of alveolar walls in emphysema leads to the destruction of associated capillary beds, impairing gas exchange. How does emphysema affect the surface area for gas exchange? - ANS - Emphysema reduces the surface area available for gas exchange due to the destruction of alveoli. What is the significance of digital clubbing in respiratory conditions? - ANS - Digital clubbing can indicate chronic respiratory diseases, including COPD and bronchiectasis. Why is bronchiectasis considered an obstructive lung disease? - ANS - Because it involves airway obstruction due to permanent damage and dilation of the airways. What is the relationship between bronchiectasis and age? - ANS - Bronchiectasis is more common in older adults, particularly those over 60, and has a higher prevalence in women. What are the consequences of airflow limitation in COPD? - ANS - It leads to gas trapping and hyperinflation of the lungs.
What is the effect of COPD on exercise tolerance? - ANS - COPD leads to decreased exercise tolerance due to ventilatory constraints and reduced lung function. What is the significance of increased functional residual capacity (FRC) in COPD? - ANS - Increased FRC indicates trapped air in the lungs, which can exacerbate breathing difficulties. What is cystic fibrosis (CF)? - ANS - A genetic condition caused by a dysfunction in the CFTR (cystic fibrosis transmembrane regulator) protein. What role does the CFTR protein play in the body? - ANS - It manages the exchange of sodium and chloride across exocrine membrane surfaces. What are the consequences of CFTR dysfunction in cystic fibrosis? - ANS
- It results in thicker, stickier secretions in organs such as the lungs, pancreas, and female reproductive system. How is cystic fibrosis inherited? - ANS - It is an autosomal recessive gene, meaning both males and females can be carriers and affected.
What is the probability of a child being born with CF if both parents are carriers? - ANS - There is a 1 in 4 chance for every pregnancy. What is the carrier frequency of the CF gene in the population? - ANS - One in 25 individuals are carriers of the CF gene. What are some common symptoms of cystic fibrosis related to the lungs? - ANS - Airway infections, inflammation, progressive airway damage, and obstructive lung disease. What complications can arise from cystic fibrosis in the lungs? - ANS - Pneumothorax, haemoptysis, and significant lung damage requiring lung transplantation. How does CFTR dysfunction affect mucociliary clearance in the lungs? - ANS - It leads to a dehydrated airway surface, rendering cilia dysfunctional and impairing mucociliary clearance. What are some gastrointestinal issues associated with cystic fibrosis? - ANS - Malabsorption, distal intestinal obstructive syndrome, and urinary stress incontinence. How is cystic fibrosis diagnosed? - ANS - Through newborn screening, confirmed by a sweat test and genetic blood tests.
What is the historical perspective on life expectancy for individuals with cystic fibrosis? - ANS - Life expectancy 40 years ago was childhood, but has increased significantly with advancements in care. What are some co-morbidities associated with cystic fibrosis? - ANS - CF- related diabetes, liver disease, bone disease, and infertility due to absence or blockage of the vas deferens. What is the significance of genetic testing in cystic fibrosis? - ANS - It allows for identification of mutations and is encouraged in families with a history of CF. What is the general classification of cystic fibrosis as a medical condition? - ANS - It is a multisystem condition with limited life expectancy and no cure. How does cystic fibrosis affect exercise tolerance? - ANS - It causes a reduction in exercise tolerance due to progressive lung damage. What advancements have been made in cystic fibrosis treatment? - ANS
- Introduction of modulator therapy and improved understanding of the disease.
Why do health professionals develop long-term relationships with individuals with CF? - ANS - Because CF is diagnosed early and requires ongoing care. What are the two main categories of respiratory tract infections? - ANS - Upper respiratory tract (URT) infections and lower respiratory tract (LRT) infections. What structures are included in the upper respiratory tract (URT)? - ANS
- Nasal cavity, pharynx, and larynx. What structures are included in the lower respiratory tract (LRT)? - ANS
- Trachea, primary bronchi, and lungs. What is the primary cause of most upper respiratory tract infections? - ANS - Most are caused by viruses. What are some examples of upper respiratory tract infections (URTIs)? - ANS - Sinusitis, pharyngitis, laryngitis, tonsillitis, and nasopharyngitis. Is physiotherapy generally indicated for upper respiratory tract infections? - ANS - No, physiotherapy is not generally indicated for these conditions.
What distinguishes chronic bronchitis from acute bronchitis? - ANS - Chronic bronchitis presents in exacerbations of chronic obstructive pulmonary disease (COPD). What is the importance of physiotherapy in lower respiratory tract infections? - ANS - Physiotherapy is indicated in many types of LRT infections. What is the role of physiotherapy in the management of pneumonia? - ANS - To provide interventions that support recovery and improve respiratory function. What is the clinical significance of understanding upper respiratory tract infections for physiotherapists? - ANS - It aids in clinical reasoning and understanding patient presentations. What is the expected outcome of physiotherapy interventions in patients with LRT infections? - ANS - Improved respiratory function and recovery from the infection. What is the common treatment approach for chronic bronchitis? - ANS - Management typically focuses on controlling symptoms and preventing exacerbations.
What is the relationship between upper respiratory tract infections and mobility in elderly patients? - ANS - Infections can lead to functional decline and require physiotherapy for mobility assessment. What is the clinical picture of a patient with pharyngitis? - ANS - Symptoms include painful swallowing, which can lead to decreased food and fluid intake. Why is it important for physiotherapists to know about URTIs in pediatric and elderly patients? - ANS - To provide appropriate care and understand the implications of these infections on overall health. What is chronic bronchitis and its primary causes? - ANS - Chronic bronchitis is a long-term condition characterized by persistent coughing that produces mucus or phlegm, usually caused by long-term exposure to irritants such as cigarette smoke, polluted air, or chemical fumes. How is pneumonia defined and what are its common causes? - ANS - Pneumonia is the acute inflammatory consolidation of alveoli, often caused by bacteria, and is a serious infectious disease with considerable morbidity and mortality. What are the two main classifications of pneumonia based on acquisition? - ANS - 1. Community-acquired pneumonia (CAP) - acquired
