Pulmonary differential diagnosis Flashcards
What are PFTs used for?
Evaluating lung volumes, capacities, and flow rates – used to diagnose disease and monitor progression
Restrictive disease: decreased lung volumes
Obstructive disease: increased lung volumes
What are common s/s of pulmonary diseases?
- Altered breath sounds
- cyanosis and/or clubbing
- hypoxemia and/or hypercapnia
- chest pain/tightness
- SOB at rest and with exertion
- cough
- tachypnea
- fatigue
- weakness
- accessory muscle use at rest
What is seen on a CXR in a patient with obstructive disease?
- flattened diaphragm
- hyperlucency
- hyperinflation
diagnosis
Chronic disease that limits expiratory flow due to abnormalities in alveoli and/or airways usually from environmental exposure
Slow progression
COPD
How is COPD diagnosed?
Global Initiative for Obstructive Lung Disease (GOLD) Criteria
combines evaluation of expiratory flow and functional limitation tests (Modified MRC dyspnea scale, COPD assessment test)
diagnosis
chronic inflammation of airways that causes increased mucous production, cough, SOB, and fatigue
chronic bronchitis
When is chronic bronchitis diagnosed?
When chronic coughing is present for >3 months or 2 consecutive years
diagnosis
Progressive alveolar and parenchymal destruction with concomitant enlargement of distal airways usually leading to severe expiratory airflow limitations
emphysema
What is the primary cause of emphysema?
smoking
What are the following diagnoses defined as?
- COPD
- chronic bronchitis
- emphysema
- asthma
- PNA
- bronchiectasis
- cystic fibrosis
- bronchopulmonary dysplasia
- respiratory distress syndrome (RDS)
obstructive disorders
What are the types of COPD?
- emphysema
- chronic bronchitis
diagnosis
Chronic inflamamtory disease caused by increased reactivity of the trachea and bronchi to various stimuli
- variable symptoms and expiratory flow limitations
asthma
(true/false) During remission from asthma, the patient has some degree of airway inflammation
true
What are the types of PNA?
- aspiration
- bacterial
- viral
diagnosis
When aspirated material causes an acute inflammatory reaction within the lungs
aspiration PNA
What populations are normally found to experience aspiration PNA?
- dysphagia
- fixed neck EXT
- intoxication
- impaired consciousness
- NM disease
- recent anesthesia
What is the most common type of PNA? Where is it acquired?
a. bacterial (Type: pneumococcal (streptococcal bacteria))
b. community acquired
What is the most common viral pneumonia in children?
RSV
diagnosis
Chronic congenital or acquired disease characterized by abnormal dilatation of the bronchi and excessive sputum production
bronchiectasis
Diagnosis
Genetically inherited disease characterized by thickening of secretions within all exocrine glands that leads to obstruction
CF
(true/false) CF can present as an obstructive, restrictive, or mixed disease
true
What are the clinical signs of CF?
- frequent respiratory infections
- inability to gain weight despite adequate caloric intake
How is CF diagnosed?
- positive postnatal blood test indicating trypsinogen
- positive sweat electrolyte test
Diagnosis
Diagnosis that results from high pressures of mechanical ventilation, high fractions of inspired oxygen, and/or infection – lungs show areas of pulmonary immaturity and dysfunction due to hyperinflation
bronchopulmonary dysplasia
often sequela of premature infants with RDS