Tuberculosis Flashcards

1
Q

Define Tuberculosis

A

A GRANULOMUS bacterial infection that is spread through inhaling lung droplets from the coughs or sneezes of an infected person.

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2
Q

By how much is tuberculosis death falling every year

A

2%

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3
Q

What Bacteria causes Tuberculosis

A

Myobacterium Tuberculosis (most common)
Myobacterium Africanum
Myobacterium Bovis

Non tuberculous mybacteria (NTM)
Leprosy

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4
Q

What features of Tuberculosis causing bacteria makes the disease difficult to treat quickly

A

Slow moving

Very thick fatty cell wall

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5
Q

Is tuberculosis usually found basally or at the apex (and why)

A

Apex because the bacteria are aerobic

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6
Q

How is tuberculosis spread

A

Air born

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7
Q

How is tuberculosis not spread

A

Food contamination
Hands
Surfaces
Kissing

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8
Q

How is Bovine tuberculosis spread

A

Unpasteurised Milk

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9
Q

What immune response does tuberculosis trigger

A

T-cell mediated response

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10
Q

What damage can the T cell immune response to tuberculosis do to the body

A

Cause cell damage/cavitation

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11
Q

What accumulate to form langhan’s giant cells and what is the accumulation called

A

Macrophages

Granuloma

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12
Q

What can the destroyed lung tissue undergo during tuberculosis infection

A

Central caseating necrosis

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13
Q

What is Central caseating necrosis

A

Condition of cellular death when the lung cells die and begin to take on a crumbly, dull, white appearance that resembles CHEEESSSEEEEEE

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14
Q

What are the three general outcomes of tuberculosis

A

Cleared/cured
Contained/latent
Progressive disease

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15
Q

What percentage of people get cleared/cured from tuberculosis

A

85%

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16
Q

What are two progressions of tuberculosis that are deadly

A

Tuberculous Bronchopneumonia

Miliary Tuberculosis

17
Q

What happens in Tuberculous Bronchopneumonia

A

Increased cavitation
Hilar lymph nodes enlarged and compress bronchi causing lobar collapse
Enlarged lymph nodes discharge into bronchus

18
Q

What happens in Miliary Tuberculosis

A

The bacteria spreads to multiple organs

Widespread small granulomas

19
Q

What are the two hypothesis for Post primary disease

A

TB enter dormant stage

A balanced state of replication/destruction is found in the body

20
Q

What does the patient present with in Tuberculosis

A

Sweat (mainly at night)
Fever
Weight lose

Cough

21
Q

What are the clinical signs of Tuberculosis

A

Mediastinal lymphadenopathy
Pleural effusion
Miliary spread

22
Q

What is the biggest indicator of Tuberculosis in children

A

Enlarged lymph nodes

23
Q

What investigations should you do for Tuberculosis

A

GET A SPUTUM SAMPLE (if cant then induce)

3 sputum samples with 8-24hr gap + 1 at early morning

24
Q

Whats the minimum time for tuberculosis treatment

A

6 months

25
Q

What drugs are used for tuberculosis treatment and what are the side effects

A

Rifampicin - Irn bru tears/urine and hepatitis
Isoniazid - Hepatitis and neuropathy
Pyrazinamide - Hepatitis and Gout
Ethambutol - Optic Neuropathy

RIPE (P&E for 2 months and R&I for 6)

26
Q

Who is given B-C-G vaccinations

A

Those in risk groups