3. Etiology of Lung Abscess:
In many cases the causes & pathogenesis is similar to
pneumonia
The more commonest causes is aspiration of materials
into the lung &
Risk Factors Are:
Alcoholism, seizures disorders, drug overdose,
Infections: Klebsiella, S. aurous, anaerobic bacilli.
Secondary result from hematogenously: pulmonary
embolism, malignant growth, TB & fungus & parasitic
diseases of lung
5. Clinical Manifestation of Lung Abscess
On P/E: dullness on percussion, decrease breath
sound on auscultation
Muco purulent cough (brown color) with foul
smelling
Hemoptysis especially at the time of abscess
rupture
Fever, chill
Pleuritic pain, dyspnea, cough & weight loss
Crackle may present
Oral infection: dental caries, gringivitis
7. Medical Management of Lung Abscess
Antibiotics: Penicillin G, Pen-V & clindamycin
If antibiotic is failed & fever and other symptoms continue
after 10-14 days of after treatment & x-ray shows abscess
is not shrinking surgical treatment is needed.
In surgical treatment removal of abscess of insertion of tube
to drain the abscess.
Chest physiotherapy & postural drainage
Maintain oral hygiene, rest & good nutrition
Adequate fluid intake
9. Nursing Diagnosis of Lung Abscess
Hyperthermia related to direct effects of circulating
endotoxin on the hypothalamus
Ineffective airway clearance related to bronchoconstriction,
increased production of secretions, retained secretion
Impaired gas exchange related to oxygen disruption &
damage to the alveoli
Pain related to pulmonary parenchymal inflammation,
retained cough
Activity intolerance related to imbalance between supply &
demand of oxygen, general weakness
Knowledge deficit related to lack of information,
misunderstanding about information, cognitive limitation
10. Occupational Lung Diseases
• Occupational or environmental lung disease result
from inhaled dust or chemicals.
•The duration of exposure & amount of inhalation
has a major influence whether the individual will
have lung damage & another factors is the
susceptibility of host.
11. Etiology of Occupational lung diseases
Blue collar workers (Labor jobs) than white collar-
workers (office setting jobs)
Industrial area than the rural areas
Small & medium sized business than in large
industrial plants
Fungi & bacteria: working in swimming pool,spa
Farmers, mushroom workers,
13. 1. Pneumoconiosis
– Pneumoconiosis is also known as “dust in the lungs”
through inhalation & retention of dust particles.
i) Silicosis ii) Asbestosis iii) Byssinosis
Its types are
14. i) Silicosis:
• It is a condition caused by inhaling too much silica over
a long period of time.
• Silica is a crystal-like mineral found in sand, rock, and
quartz
• silica dust particles act as tiny blades on the lungs.
• These particles create small cuts that can scar the lung
tissue when inhaled through the nose or mouth.
• Scarred lungs do not open and close as well, making
breathing more difficult.
• The U.S. Department of Safety says silica is a
“carcinogen” that can cause cancer including lung
cancer.
15.
16.
17. There 3 level of silica exposure:
Acute Accelerated Chronic
• Acute silicosis
forms a few weeks
or months after
high levels of silica
exposure.
•This condition
progresses
rapidly.
• Accelerated
silicosis comes on
5 to 10 years after
exposure.
• Chronic silicosis
occurs 10 years or
more after silica
exposure.
• Even low
exposure levels
can cause chronic
silicosis.
18. Clinical Feturses of silicosis
Breathlessness, weakness, chest pain, productive
cough
May die due to corpulmonale & respiratory failure
Prevention of silicosis
Use of special suits and breathing apparatus
19. 2. Asbestos-related lung diseases
(Asbestosis)
• A soft, greyish-white material that does not burn,
used especially in the in buildings, clothing, protection
against fire.
• Asbestosis is a chronic inflammatory & fibrotic condition
which affects lung tissues caused by inhalation & retention of
asbestos fibers.
• It commonly seen in people who works in mining,
manufacturing, handling or removal of asbestos.
• Asbestos caused lung cancer, malignant mesothelioma( CA
of pleura and peritoneal membrane) cancer of the larynx, &
certain gastrointestinal cancer.
20. Clinical Features of Asbestosis
Shortness of breath during physical activities
May lead respiratory failure
Reduce vital capacity (total lung capacity)
Right side heart failure
Cor-pulmonale
Low O2 capacity in the blood arteries.
Prevention of Asbestosis
Use of protective mask during work
Pneumonia vaccine: help in the reduction of lung infection.
Using the vacuum cleaner or wet rags rather than
sweeping
Using protective face mask
21.
22. Hypersensitivity Diseases
• It is also called as hypersensitivity reaction or intolerance.
• It is a set of undesirable reaction produced by normal
immune systems including allergies, occur in bronchi,
bronchioles or alveoli.
a)Occupational Asthma
•Hypersensitivity reaction caused by histamine & caused
bronchoconstriction & increased mucus production.
•Repeated attack, if caused unrecognised & asthma is
untreated may lead to COPD.
23. Risk Factors of occupational Asthma
House dust, cigarette smoke
Working in: animals handler, veterinarians, millers e.g.
cereal, grains, carpet maker, carpenters, hairdressers,
health care workers, pharmaceutical worker
Sign & symptoms:
Fatigue, wheezing during night
Coughing, SOB, chest tightness
Runny nose, nasal congestion
Eye irritation & tearing
24. Byssinosis (Brown lung diseases)
•It is also called "brown lung disease" or “Monday
fever",
• It is an occupational lung disease caused by
exposure to cotton dust in inadequately ventilated
working environments.
• It's caused by the inhalation of raw flax, hemp,
cotton dust, and similar materials.
25.
26. Coal worker's pneumoconiosis or black
lung disease
• This disease is caused by inhaling coal dust.
• It causes inflammation and scarring of the lungs.
• This can cause permanent lung damage and
shortness of breath.
27.
28. Diagnosis
• Chest X-ray
• Pulmonary function tests (PFTs)
• Bronchoscopy: this test uses to view the bronchi & helps
to diagnose lung problems, for blockages.
• Lung biopsy
• Blood tests
• CT scan: it can be used to diagnose lung diseases,
monitor disease progression, and evaluate response to
treatment.
29. Management of occupational lung
diseases
There is no specific treatment for occupational lung
diseases treatment is based on sign & symptoms
The best approach to management is to prevent
environmental or occupational risks
Effective ventilation, wearing mask, protective measures
Cigarette smoking must be avoided
Early diagnosis and treatment
Periodic chest x-ray and pulmonary function test for
vulnerable people