Give the etiological agent and drug of choice of ,chicken pox,scabies,plague, amoebiasis,herpes zoster? Outline causes of pleural effusion? State 6 chest findings in pleural effusion? ?

1. Chicken pox:
- Etiological agent: Varicella-zoster virus
- Drug of choice: Acyclovir

2. Scabies:
- Etiological agent: Sarcoptes scabiei mite
- Drug of choice: Permethrin

3. Plague:
- Etiological agent: Yersinia pestis
- Drug of choice: Streptomycin

4. Amoebiasis:
- Etiological agent: Entamoeba histolytica
- Drug of choice: Metronidazole

5. Herpes zoster:
- Etiological agent: Varicella-zoster virus
- Drug of choice: Acyclovir

Causes of pleural effusion:
- Infection (pneumonia, tuberculosis)
- Heart failure
- Cancer
- Pulmonary embolism
- Liver or kidney disease
- Autoimmune disorders

Chest findings in pleural effusion:
1. Decreased breath sounds on affected side
2. Dullness to percussion over the affected area
3. Decreased tactile fremitus
4. Pleural rub
5. Dyspnea
6. Chest pain

Etiological Agent and Drug of Choice

- Chicken pox: Varicella-zoster virus; Acyclovir
- Scabies: Sarcoptes scabiei; Permethrin
- Plague: Yersinia pestis; Streptomycin, gentamicin
- Amoebiasis: Entamoeba histolytica; Metronidazole
- Herpes zoster: Varicella-zoster virus; Acyclovir

Causes of Pleural Effusion

- Congestive heart failure
- Cirrhosis with ascites
- Pneumonia
- Tuberculosis
- Malignancy
- Nephrotic syndrome

Chest Findings in Pleural Effusion

- Dullness to percussion
- Decreased breath sounds
- Increased tactile fremitus
- Shifting dullness (mobile effusion)
- Egophony (whispered voice sounds like "e")
- Bronchial breathing (airway sounds transmitted through fluid)