Topic 14 - Respiratory Pathologies 3 Flashcards
What are the 2 main types of infection related respiratory pathologies?
1) Pneumonia
2) Tuberculosis
An infection leading to inflammation of the parenchymal structures of the lungs, characterized by vascular permeability and hyperemia, leading to exudate formation that fills the alveolar spaces and distal bronchioles.
Pneumonia (aka. Pneumonitis)
_________, resulting in pneumonia is a major contributor to death and hospitalization among the elderly.
Influenza
What are the 2 main types of pneumonia?
1) Lobar Pneumonia
2) Bronchopneumonia
Pneumonia can be caused by _________ (e.g. bacteria, virus, fungus, parasites) via:
- Aspiration of contaminated secretion
- Inhalation of infected airborne droplets
- Direct extension of an acute inflammatory process from an adjacent organ/structure (e.g. flu, viral infection to upper respiratory tract)
- Bacteremia
Infection
Another cause of pneumonia would be anytime the body’s normal defenses are deficient, making it an _____________ disease. This is especially apparent with _______ patients and immunocompromised individuals.
Opportunistic
Elderly
Pneumonia affecting a whole lobe or a large section of the lobe of a lung. It commonly arises due to a streptococcal bacterial infection.
Lobar Pneumonia
T/F - Lobar pneumonia is usually delayed onset, affecting an otherwise healthy person.
False - Lobar pneumonia is usually RAPID onset, affecting an otherwise healthy person.
Signs and symptoms of _____ pneumonia include:
- High fever, chills, fatigue and loss of appetite
- Acute, violent productive cough leading to severe pleuritic pain and/or severe dyspnea
- Possible hemoptysis due to damaged lung tissue
Lobar
_____________ of lobar pneumonia include:
- Endocarditis
- Meningitis
- Pleural adhesion
- Chronic bronchitis
Complications
T/F - Lobar pneumonia is now fully treatable with antibiotics.
True
What are the 4 stages of lobar pneumonia?
1) Congestion
2) Red Hepatization
3) Gray Hepatization
4) Resolution
The __________ stage of lobar pneumonia can be described as:
- Lasts 48 hours
- Inflammation and congestion in lungs
- Vascular congestion, intra-alveolar fluid, small numbers of neutrophils, often numerous bacteria, heavy and hyperaemic lung
Congestion
The ___ ____________ stage of lobar pneumonia can be described as:
- Vascular congestion persists
- Capillary rupture leads to red blood cell leakage into alveolar space
- Increased neutrophils and fibrin
- Exudate fills alveoli which makes the affected lobe appear solid and reddish in colour
Red Hepatization
The ____ ____________ stage of lobar pneumonia can be described as:
- Red cells disintegrate, with persistence of the neutrophils and fibrin
- The alveoli still appear as a solid mass, but overall the colour is paler and the surface is drier
Gray Hepatization