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Micro USMLE > Bacteria > Flashcards

Bacteria Flashcards

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USMLE® Step 1 flashcards
1
Q

Principales patologías Staph. Aureus.

A

Pneumonía especialmente después de infección viral.

Food poisoning: mayonnaise and meat

Absceso

Scalded skin syndrome:
3-7 días
Destruye keratinocytes en strato granulosum
Nikolky sign

Osteomielitis:

Endocarditis: acute onset, tricuspid valve.

Intravascular devices

Bullous Impetigo: igual que el strepto grupo A

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2
Q

Osteomilities en ninos germen causal

A

Staph. Aureus

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3
Q

Osteomilities en falcémicos

A

Salmonella

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4
Q

En caso de un Mrsa que atb se prefiere

A

Vancomicina

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5
Q

Staph. Epidermis is y saprofiticus son coagulasa

A

Negativo

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6
Q

Lugares donde Staph. Epidermididis infecta…

A
  • Prosthetic joints
  • Catheter infections
  • Pacemaker infections
    ❤️🦴
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7
Q

Staph. Epidermidis atb de preferencia

A

Vancomycin

MRSA

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8
Q

Staph saprophytic sistema que infecta

A

🟡🚽

UTI

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9
Q

Staph saprófito is tiene nitritos

A

Negativo

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10
Q

Tx UTI

A

Fluoquinolones
Smx- tmp
Nitrofurantoin

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11
Q

Staph aureus y epidermidis son ureasa

A

Positivo

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12
Q

El streptococci es un microorganismo… que le permite adherirse a superficies y evitar la fagocitosis.

A

Encapsulado

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13
Q

La cápsula del S. Pyogenes es de..

A

Hyaluronic Acid

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14
Q

Streptococcus beta hemolytic…

A

S. Pyogenes

S. A galactiae

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15
Q

Impetigo es causado por…

A

Stap Aureus

Strep Pyogenes

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16
Q

Faringitis

A

Strep. Pyogenes

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17
Q

Cellulitis y erisipelas…

A

Strep. Pyogenes

18
Q

Toxina Strep. Pyogenes

A

Pyogenic

19
Q

Scarlet fever…

Germen causal y tríada

A

Strep. Pyogenes

  1. Strawberry tongue
  2. Pharyngitis
  3. Diffuse rash that spares the face
20
Q

Toxic Shock like Syndrome

A

Mediated by súper antigen

Strep Pyogenes

21
Q

Necrotizing fascittis

A

Strep Pyogenes

22
Q

Toxigenic Conditions caused by strep. Pyogenes

A
  1. Scarlet fever
  2. Necrotizing fasciitis
  3. Toxic shock like syndrome
23
Q

… is the main virulence factor for Rheumatic Fever.

A

M protein

24
Q

L proteína m tiene una característica… que le permite no ser demolida por el cuerpo

A

Anti fagocitoca

25
Q

Rheumatic fever provoca… en el corazón

A

Estenosis mitral

26
Q

… precipitates RF

… does not

A

Pharyngitis

Skin infections

27
Q

Criterios de J❤️nes

A 
J- joints- polyarthritis 
O- heart- myocarditis y polycarditis
N- nodules- subcutáneos nodules 
E- Eryrhema marginatum
S- Sydenham’s chorea
28
Q

Rheumatic Fever is type… hypersensitivity reaction

A

2

29
Q

Glomerulonephritis is a type… hypersensitivity reaction

A

3

30
Q

…. And … are the main symptoms for Glomerulonephritis

A

Facial Edema

Dark brown urine

31
Q

Glomerulonephritis intersticial ocurre

… después que empieza la infección

A

2 semanas

32
Q

PSGN occurs after… and …. Unlike Rheumatic Fever that occurs only after..

A

Pharyngitis e Infección de la piel

Pharyngitis

33
Q

Los factores de virulencia del Strep. Pyogenes son…

A
  1. Stretpolysin O
  2. Streptokinase (añaden grupo P)
  3. DNA ase
34
Q

Los anticuerpos contra STreptolysine are…

A

ASO

35
Q

…. Is bacitracine resistant

A

Strep. b

36
Q

Is bacitracin sensible..

A

Strep. Agalactiae

37
Q

…. Is hippurate sensitive

A

Strep Agalactiae o grupo B

Hidrolizado sodio hippurate

38
Q

Strep agalactiae tiene cápsula?

A

Siii

39
Q

Strep. Agalactiae is .. test positive, which means that placed with the Staph. Aureus creates hemolysis

A

Camp test positive

40
Q

1 cause of meningitis in newborns

A

Strep. Agalactiae

41
Q

Strep Agalactiae causes.. in babies

A

pneumonia, meningitis, sepsis

42
Q

All pregnant women needs to be swap at …. Weeks to see if they are colonized by Strep Agalactiae

A

35

Micro USMLE (3 decks)

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