MICRO Flashcards

1
Q

Used to diagnose what?

  • cryoglobulins
  • Tzanck Smear
  • heterophiles antibodies
  • circulating surface antigen
  • Hemadsorption
  • Papanicolaou Test
A
  • Hep C
  • HSV or VZV
  • EBV
  • Hep B
  • Influenza or Parainfluenza
  • Cervival Cancer
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2
Q

what is the main action of EBV on the B cells

A

it stimulates them so they are continuously proliferating (immortal)

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3
Q

spherules in endospores represents what funds

A

Coccidioides Immitis

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4
Q

name four states associated with Coccidiodes Immitis (South west US)

A

texas
Arizona
California
New Mexico

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5
Q

a patient who is around a lot of birds and bats could have which fungus

A

Histoplasma Capsulatum

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6
Q

Cryptococcus Neoformans causes meningitis in immunosuppressed people by spreading through?

A

pigeon poo

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7
Q

Allergic Bronchopulmonary Aspergillosis is seen in patients who already have?

A

asthma

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8
Q

this is found as mold in the earth but turns into spores at body temp and are inhaled and contain endospores

A

C. Immitis

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9
Q

a double zone of beta hemolysis is seen and spores, gram positive anaerobe?

A

C Perfringens

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10
Q

what does M protein do for S. Pyogenes

A

lets it escape phagocytosis

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11
Q

necrotizing fasciitis can be caused by what 3 main bacteria

A

S. progenies
S. aureus
C. Perfringins

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12
Q

cyst that are found in the brain followed by seizures (neurocysticercosis) s due to

A

Tenia Solium (South american like Guatemala)

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13
Q

larvae that penetrate through the feet and cause eosinophils and GI disease in immunocompromised people are due to

A

Strongyloides Stercoralis

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14
Q

ecthyma gangrenous is highly associated with what bacteria

A

Pseudomonas Aeruginosa

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15
Q

skin patches with ulcerations and necrosis in the middle is what

A

ecthyma gangrenous

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16
Q

most common cause of gram - sepsis usually following UTI

A

E. Coli

17
Q

What is the order of the treatment for Acute Diphtheria

A
  1. Diphtheria antitoxin (passive immunization)
  2. Penicillin/ erythromycin
  3. DPT vaccine (active immunization)
18
Q

broad budding yeast

A

Blastomyces

19
Q

spherules in endospores

A

Coccidioides

20
Q

Capsule that stains with India Ink

A

Cryptococcus

21
Q

small oval yeast in macrophages

A

Histoplasma

22
Q

pseudohyphae with blastoconidia

A

candida

23
Q

dimorphic fungi that is specific to the US

A

Coccidioides

24
Q

45 degree angle branching hyphae?

A

Mucorales and Rhizopus

25
Q

bacteria that can cause meningitis but is not covered by third generation cephalosporins (cefotaxime and ceftriaxone) because it has altered penicillin binding proteins

A

Listeria

26
Q

cell mediated immunity or humoral will cure listeria

A

cell mediated

27
Q

drug for listeria

A

ampicillin

28
Q

what halts protein synthesis by disabling the 60 s ribosomal subunit leading inhibition of protein synthesis and to intestinal epithelial cell death and diarrhea

A

shiga toxin ( shigella and EHEC)

29
Q

which E coli doesn’t produce glucuronidase

A

EHEC

30
Q
HUS
- anemia
- thrombocytopenia
- renal insufficiente
can be caused by what  E coli
A

EHEC

31
Q

what 4 bacteria increases intracellular cAMP which causes decreased absorption in intestinal cells and secretion of sodium, chloride and water

A

ETEC (Lt)
Bordatella Pertussis
V. Cholera
C. Jejuni

32
Q

what two bacteria increase cGMP causing watery diarrhea

A

ETEC (ST)

Yeirsinea