Gram (-) Bacteria - Mycobacterium and Bacteria without cell walls Flashcards

1
Q

What type of bacteria is Mycobacterium?

A

Acid Fast Bacilli

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2
Q

What on the wall of Mycobacterium retains stain?

A

Wax

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3
Q

2 Mycobacterium?

A

Mycobacterium Tuberculosis

Mycobacterium Leprae

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4
Q

2 Mycobacterium?

A

Mycobacterium Tuberculosis

Mycobacterium Leprae

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5
Q

What cells take up Mycobacterium Tuberculosis?

A

Alveolar Macrophages

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6
Q

For Mycobacterium Tuberculosis, what does cell mediated immunity response cause?

A

Necrotizing granulomata

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7
Q

Cord factor of Mycobacterium Tuberculosis?

A

TNF

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8
Q

What allows survival of Mycobacterium Tuberculosis in macrophages?

A

Sulfatides

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9
Q

Where does Mycobacterium Tuberculosis begin and how?

A

Lung - aerosolized transmission

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10
Q

Symptoms of Primary Tuberculosis?

A

Fever, chest pain, hilar lymphadenopathy

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11
Q

Wall off with a Ghon complex to cause necrotizing granulomas is seen with?

A

Primary Tuberculosis

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12
Q

What usually causes Secondary Tuberculosis?

A

Reactivation of latent infection

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13
Q

Symptoms of Secondary Tuberculosis?

A

Insidious onset: Fever, night sweats, hemoptysis(coughing up blood!)
Poorly walled cavitary lesion in upper lungs

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14
Q

Poorly walled cavitary lesion in the upper lungs is seen with?

A

Secondary Tuberculosis

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15
Q

Secondary Tuberculosis spreads through arteries

A

Miliary Tuberculosis

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16
Q

Miliary Tuberculosis

A

Secondary Tb spreads through arteries

= Lesions on other organs

17
Q

Secondary Tuberculosis of vertebral involvement?

A

Pott’s Disease

18
Q

Pott’s Disease

A

Secondary Tb vertebral involvement

19
Q

2 screening tests for Tuberculosis?

A

Tb skin test

IFN-gamma release assay

20
Q

Mycobacterium Leprae has ____ transmissibility

A

LOW

21
Q

What carries Mycobacterium Leprae?

A

Armadillos

22
Q

Mycobacterium Leprae grows at ____ temperatures

A

Cooler

23
Q

2 types of Mycobacterium Leprae?

A

Tuberculoid Leprosy

Lepromatous Leprosy

24
Q

Tuberculoid Leprosy has a ____ cell mediated response

A

STRONG

25
Q

Lepromatous Leprosy has ____ cell mediated response

A

NO

26
Q

Symptoms of Tuberculoid Leprosy?

A

Localized skin lesions
Granulomatous inflammation
Loss of nerve sensation

27
Q

Symptoms of Lepromatous Leprosy?

A

Skin lesions all over body

Loss of digits and involvement of organs

28
Q

What are 3 bacteria without cell walls?

A

Mycoplasma Pneumoniae
Mycoplasma Genitalium
Ureaplasma Urealyticum

29
Q

What are 3 bacteria without cell walls?

A

Mycoplasma Pneumoniae
Mycoplasma Genitalium
Ureaplasma Urealyticum

30
Q

What does Mycoplasma Pneumoniae cause?

A

Walking and Atypical Pneumonia

Erythema Multiforme

31
Q

Erythema Multiforme

A
  • Seen with Mycoplasma Pneumoniae

= Multiple target lesions

32
Q

Diagnostic test for Mycoplasma Pneumoniae?

A

Cold Agglutinins

33
Q

What does Mycoplasma Genitalium and Ureaplasma Urealyticum cause?

A

Urethritis

34
Q

What bacteria without cell walls cause urethritis?

A

Mycoplasma Genitalium

Ureaplasma Urealyticum