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MT Exam Prep > Microbiology > Flashcards

Microbiology Flashcards

1
Q

Bacillus Anthracis

A

Gram positive

Large, gray, & non-hemolytic on blood agar “Medusa Head” morphology

Whisked eggs consistency

Non-motile

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2
Q

Alcaligenes faecalis

A

Plump gram negative cocci bacilli on gram stain.

Peritrichous flagella

Fruity odor : apples/strawberries

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3
Q

Which of the following streptococcus spp. exhibits a positive bile solubility test?

A

S pneumoniae

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4
Q

Pinworm

A

Enterobius Vermicularis

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5
Q

Clonorchis Sinesis

A

Liver fluke
Found in bile ducts

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6
Q

Klebsiella Pneumoniae

A

Non-Motile

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7
Q

Histoplasma Capsulatum

A

Large, one celled, smooth-to-tuberculate macroconidia, and smooth or echinulate microcondia are typical of mycelial phase growth

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8
Q

Sporothrix schenkii (Sporotrichosis)

A

Lactophenol blue
Causes subcutaneous infections
From contaminated dead/living vegetation
Daisy

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9
Q

When considering therapeutic drug monitoring, what is the definition of bioavailability?

A

The fraction of the administered dose eventually reaches its site of action

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10
Q

What is the purpose of C3a and C5a, the split products of the complement cascade?

A

Cause increased vascular permeability, contraction of smooth muscle, and a release of histamine from basophils

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11
Q

RBC inclusion seen with supravital stain

A

Heinz Bodies

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12
Q

Intrinsic Pathway

A

Factor VIII
Factor IX, XI,XII
Prekallikrein
HMW kiniogen

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13
Q

What is the normal myeloid to erythroid ratio in the bone marrow?

A

2:1 -4:1

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14
Q

Mycobacterium tuberculosis

A

Thin, slightly curved, red-pigmented and beaded.
Arranged in serpentine cords

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15
Q

Trich Rome stained organism measuring 15 um was found in a stool sample

A

Entamoeba Histolytica

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16
Q

Streptomyce species

A

Exhibit colonies that are gray white and relatively smooth

Long slender branching gram positive bacilli

Middlebrook Agar

17
Q

Which is the first marker to become positive after exposure to hepatitis b

A

HBsAg

18
Q

Bacillus Cereus

A

Butter consistency on agar

GS: box car

19
Q

Salmonella Typhi

A

Kligler Iron Agar
Sulfide Indole Motility
Indole Broth
Voges Proskauer broth
Simmons Citrate

20
Q

Oxacillin resistance in clinical strains of staphlococci by the detection of the __ gene

A

mecA

21
Q

Strict anaerobe, non-motile, GN bacillus , occurring in abscesses & associated with peritonitis

A

BACTEROIDES

22
Q

Pseudomonas Aeruginosa

A

Non fermenter

23
Q

Beta lactamase positive organisms

A

S. Epi, P. Aeruginosa, k. Pneumoniae , e.coli

24
Q

Bile esculent test is used to differentiate which 2 organisms

A

Group D streptococci & Enterococci

25
Q

Oxidase + Organisms

A

Neisseria, Moraxella, H py, V. Cholera, C. Jejuni, Aeromonas, & L. Pneumophila

MT Exam Prep (9 decks)

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