Mycoplasma Pneumonia Flashcards

1
Q

Disease

A

Atypical pneumonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Properties

A

Smallest free living organism
Devoid of cell wall
Pleomorphic
Can be grown on artificial media(not used in diagnostic purpose)
Grow slowly (at least 1 week)
Fried-egg appearance on media
Penicillin or cephalosporin ineffective

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Size

A

Smallest free living

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Cell wall

A

Absent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Peculiarity of cell membrane

A

Contain cholesterol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Media

A

Not used for diagnosis.
Can be grown on artificial media that takes 1 weeks.
Appearance:Fried egg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Pathogen for

A

Human

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Transmission

A

Respiratory droplets

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Damage respiratory tract by

A

Hydrogen peroxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Serotype

A

1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Immunity

A

Incomplete

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Autoimmunity

A

Against rbc,brain,lung,liver cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cold agglutinin

A

Autoantibody (IgM) against type O red cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Age

A

5-15 years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Prevalence

A

Most common cause of atypical pneumonia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Causes of atypical pneumonia

A

Legionellla pneumophila
Chlamydia pneumonia
Chlamydia psittaci
Coxiella burnetii
Virus(Adenovirus,influenza virus)

17
Q

Why called atypical?

A

1)cannot be isolated on routine media
2)does not resemble pneumococcal pneumonia

18
Q

C/F

A

Nonproductive cough
Sore throat
Earache
Small amount of whitish,nonbloody sputum.
Constitutional symptoms -
Fever
Headache
Malaise
Myalgia

19
Q

Extrapulmonary manifestations

A

Stevens-Johnson syndrome
Erythema multiforme
Mucositis
Raynaud’s phenomenon
Cardiac Arrythmia
Arthralgia
Hemolytic anemia
Neurological-
Encephalitis
Guillain-Barre syndrome

20
Q

Lab diagnosis

A

Not made by culture.
Regular media reveals only normal flora.
PCR
Cold agglutinin titer(1:128 indicate recent infection)
CFT
ELISA

21
Q

False positive cold agglutinin

A

Influenza virus
Adenovirus

22
Q

Mycoplasma hominis

A

PID

23
Q

Mycoplasma genitalium

A

NGU

24
Q

Ureaplasma Urealyticum

A

NGU
Produce urea