L1W3 Patho TB

Question 1

DefTB?

Answer 1

Chronic infective granuloma affecting nearly all body sys mainly lungs

Question 2

Predisposing factors TB? (Enviromental/personal)

Answer 2

1) Environmental:
- Low socioeconomic
- Overcrowding
- Bad general hygiene
- Contact w tb pt
2) Personal factors:
- Negroes(more than white person) -Malnutrition
- Immune deficiency states

Question 3

Causative agent(TB bacilli)?(char, structure, type)

Answer 3

Character
-Aerobic, Acid-fast, xmotile, xproduce exo/endotoxin, Carry by macrophages
Structure
-Carbohydrate, lipid, protein
Types
1) Human type(Mycobacterium tb) coz inf by inhalation
2) Bovine type(Mycobacterium Bovis) coz inf by ingestion

Question 4

Methods of infection TB? (3)

Answer 4

1) Inhalation
2) Ingestion
3) Direct contact

Question 5

Types TB? (1ry|2ry)

Answer 5

1ry|2ry
Young, ximmune | adulthood
Method inf:
Inha, ing, direct contact | endo/exogenous
Site:
lung, intes, tonsil, skin, nose | any site