Cystic Fibrosis, Bronchiectasis Flashcards

(48 cards)

1
Q

What is Cystic Fibrosis (CF)?

A

An inherited autosomal recessive disease caused by a single gene defect on chromosome 7

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2
Q

What does the CFTR gene encode?

A

The cystic fibrosis membrane conductance regulator, a transmembrane protein involved in ion transport

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3
Q

What is a common diagnostic test for Cystic Fibrosis performed on newborns?

A

Heel prick test

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4
Q

What does the sweat test measure in suspected CF patients?

A

Chloride concentration in sweat

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5
Q

What are some common symptoms of Cystic Fibrosis in the lungs?

A
  • Persistent cough
  • Wheezing
  • Shortness of breath
  • Recurring lung infections
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6
Q

What causes pancreatic insufficiency in CF patients?

A

Abnormal ion transport leading to dehydration of pancreatic secretions

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7
Q

What is a significant consequence of the CFTR protein defect?

A

Impaired transport of chloride ions

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8
Q

True or False: There is a cure for Cystic Fibrosis.

A

False

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9
Q

What is the typical life expectancy for individuals with Cystic Fibrosis?

A

About half will live past the age of 40

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10
Q

What are some gastrointestinal symptoms of Cystic Fibrosis?

A
  • Large smelly stools
  • Malnutrition
  • Poor weight gain
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11
Q

What is Meconium Ileus?

A

A serious bowel obstruction occurring in about 10% of newborns with CF

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12
Q

What types of treatments are available for Cystic Fibrosis?

A
  • Bronchodilators
  • Antibiotics
  • Mucolytics
  • Digestive enzymes
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13
Q

What is the role of the CFTR protein?

A

Controls the flow of water and chloride ions between membranes

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14
Q

What are some common additional symptoms in CF patients?

A
  • Diabetes
  • Sinusitis
  • Infertility
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15
Q

What is the impact of CF on the liver?

A

Cirrhosis due to abnormal ion transport

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16
Q

What physiological changes can occur in the musculoskeletal system of CF patients?

A
  • Inspiratory muscle atrophy
  • Weakness in anti-gravity muscles
  • Kyphosis of the spine
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17
Q

What is the significance of carrier testing for Cystic Fibrosis?

A

Determines if someone is a carrier of the faulty gene

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18
Q

Fill in the blank: CF patients often experience _______ due to the absence of vas deferens.

A

Infertility

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19
Q

What is the relationship between CF and sodium absorption?

A

High sodium sweat due to chloride ions not being absorbed

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20
Q

What is the typical cause of death in CF patients?

A

Lung complications

21
Q

What management strategies are important for CF?

A
  • Physiotherapy
  • Medication
  • Dietary advice
  • Exercise
22
Q

What is a common psychological impact of living with Cystic Fibrosis?

A

Psychological support is often needed

23
Q

What is pneumonia?

A

An inflammatory condition of the lung leading to abnormal alveolar filling with consolidation and exudation.

24
Q

What are the four stages of pneumonia?

A
  • Congestion
  • Red Hepatization
  • Gray Hepatization
  • Resolution
25
What characterizes the Congestion stage of pneumonia?
Vascular engorgement, intra-alveolar fluid, and numerous bacteria.
26
What is the time frame for the Red Hepatization stage of pneumonia?
2-3 days.
27
What happens during the Gray Hepatization stage of pneumonia?
Progressive disintegration of red blood cells with persistent fibrin exudate.
28
What are common causes of pneumonia?
* Bacteria (e.g. Streptococcus pneumonia) * Fungi * Virus (e.g. respiratory syncytial) * Parasites * Chemical * Aspiration * Inhalation (smoke, burns)
29
What are the classifications of pneumonia based on setting?
* Community Acquired Pneumonia (CAP) * Health Care Associated Pneumonia (HCAP) * Hospital Acquired Pneumonia (HAP) * Ventilator Associated Pneumonia (VAP)
30
What is a common bacterial cause of Community Acquired Pneumonia?
Streptococcus pneumonia.
31
What are common symptoms of pneumonia?
* Fever * Malaise * Muscle ache/fatigue * Coughing (productive and non-productive) * Dyspnoea * Pleuritic or chest pain
32
What are less common symptoms of pneumonia?
* Coughing up of blood * Fatigue * Nausea/Vomiting * Diarrhoea * Wheezing * Confusion
33
What are some complications of pneumonia?
* Lung abscess * Pleural effusions * Empyema * Septic Shock
34
What vital signs indicate a medical diagnosis of pneumonia?
* Temperature > 37.8°C * Heart rate > 100 bpm
35
What diagnostic tests are used for pneumonia?
* CXR * CT Scan * Blood test * Sputum culture * Pleural fluid culture * Bronchoscopy
36
What is included in the general management of pneumonia?
* Antibiotics/Anti-Fungal medication * Oxygen support * Hydration – IV fluids * Rest * Analgesics * Cough suppressant medication * Fever-reducing medication
37
What is the role of physiotherapy in pneumonia management?
To treat clinical signs and symptoms, assist with sputum clearance, and manage oxygen consumption.
38
Fill in the blank: Pneumonia can be classified as _______ based on the setting.
Community Acquired Pneumonia (CAP), Health Care Associated Pneumonia (HCAP), Hospital Acquired Pneumonia (HAP), Ventilator Associated Pneumonia (VAP)
39
What is bronchiectasis?
Permanent abnormal dilation in one or more of the lungs' bronchi, leading to mucus accumulation and increased infection risk. ## Footnote Symptoms can resemble COPD but do not always involve airflow obstruction.
40
What are the key steps in the pathogenesis of bronchiectasis?
* Impaired mucociliary clearance * Accumulation of secretions * Bacterial infection * Increased mucus production * Impaired ciliary performance * Inflammatory response * Tissue damage * Dilated bronchi ## Footnote This process creates a vicious cycle of worsening symptoms.
41
What are the causes of bronchiectasis?
* Idiopathic * Infection * Cystic fibrosis * Immunodeficiency * Ciliary dysfunction * Allergic bronchopulmonary aspergillosis * Inflammatory conditions * Aspiration/obstruction ## Footnote Each cause can contribute to the development of bronchiectasis.
42
What are common clinical features of bronchiectasis?
* Cough and chronic sputum production * Dyspnoea and wheeze (75%) * Chest pain (50%) * Signs of chronic sinusitis and nasal polyps (1/3) * Recurrent exacerbations * Haemoptysis (approx. 50%) ## Footnote Haemoptysis is rarely life-threatening.
43
What diagnostic tools are used for bronchiectasis?
* Chest x-ray * High-resolution computed tomography * Blood and sputum microbiology * Pulmonary function tests ## Footnote These tools help confirm the diagnosis and assess lung function.
44
What are the three types of bronchiectasis?
* Saccular * Cylindrical * Varicose ## Footnote Types may be localized or widespread.
45
What are symptoms of an acute exacerbation of bronchiectasis?
* Change in sputum production * Increased dyspnoea * Increased cough * Temperature >38.0˚C * Increased wheezing * Malaise, fatigue, lethargy * Reduced pulmonary function * X-ray changes * Changes in chest sounds ## Footnote Four of these symptoms can define an acute exacerbation.
46
What treatments and management strategies are available for bronchiectasis?
* Physiotherapy * IV/oral/nebulised antibiotics * Bronchodilators * Steroids * Nasal sprays * Vaccinations (flu and pneumococcal) * Surgery ## Footnote These interventions help manage the condition and improve patient outcomes.
47
What does the prognosis for bronchiectasis depend on?
Prognosis is related to lung function and the presence of infection. ## Footnote Studies indicate that prognosis for hospital-treated patients is better than for those with COPD, but poorer than for asthma patients.
48
How should bronchiectasis be managed long-term?
Requires long-term follow-up, ideally by a respiratory specialist within a multidisciplinary team, although GPs can manage most follow-ups. ## Footnote Understanding and treatment effectiveness are crucial for patient care.