Pneumonia is an infection disease

 pneumonia

Definition:

Pneumonia is an infection in your lungs causes by bacteria, virus or fungus. Pneumonia causes your lung tissue to swell (inflammation) and can cause fluid or pus in your lungs. Bacterial pneumonia is usually more severe than viral pneumonia, which often resolves on its own. Pneumonia can affect one or both lungs.

Difference between healthy lungs and pneumonia:

Healthy lungs:

When you breathe, the air sacs in your lungs, called alveoli, stretch and relax. Breathing should feel natural, steady, and easy.

Pneumonia:

Pneumonia can be caused by bacteria, viruses, or fungi. It's more common in the autumn and winter. The severity of pneumonia depends on many factors, including your age, overall health, and the type of germ causing the infection.

Symptoms of Pneumonia-

• Cough, 
• Fever, 
• Shortness of breath, 
• Chest pain, 
• Other symptoms: May include nausea, vomiting, diarrhea, headache, muscle pain, extreme tiredness, loss of appetite, and confusion 

Complication of Pneumonia:-

1. Para-pneumonic effusion: Common.
2. Empyema.
3. Suppurative pneumonia/Lung abscess.
4. Retention of sputum causing lobar collapse.
5. Hepatitis, pericarditis, myocarditis, meningoencephalitis.
6. DVT and pulmonary embolism.
7. Pneumothorax, particularly with staph. aureus.
8. ARDS, renal failure, multi-organ failure.
9. Ectopic abscess formation (staph. aureus).
10. Pyrexia due to drug hypersensitivity.

Predisposing factors of pneumonia:-

1. Cigarette smoking.
2. Upper respiratory tract infections.
3. Alcohol.
4. Corticosteroid therapy.
5. Old age.
6. recent influenza infection.
7. Pre-existing lung disease.
8. HIV.
9. Indoor air pollution.

Categories: pneumonia