MICRO Flashcards Preview

UWORLD Notecards > MICRO > Flashcards

Flashcards in MICRO Deck (312)
Loading flashcards...
1

what is the aniline dye used in acid fast stain to identify mycoplasma

carbolfuchsin

2

what is stained in an acid fast stain

mycolic acid

3

what does IFN-g do

it activates macrophages and causes the differention of helper t cells

4

IFN-g is produced by

activated t lymphocytes and NK cells

5

IFN-g release assy test for what

latent TB

6

IFN-g test what kind of immune response

cell mediated

7

what does elevated lactate DH mean

that there is cell damage or tissue damage, it is also high when bacteria is present

also seen when there is hemolytic anemia

8

due to the immune response seen when someone has mycoplasma what can happen

the patient can have hemolytic anemia because the antigens on the bacteria are the same as the ones on the red blood cells ( production of cold agglutinins IgM)

9

what is shown on buffered charcoal yeast extract medium supplemented with L-cystene and iron

Legionella

10

silver stains improve the visualization of what organism

Legionella

11

ETEC causes battery diarrhea in

travelers and kids

12

The LT enterotoxin in ETEC is similar to what

Cholera Like Toxin

13

what ETEC toxin increases cAMP by stimulating Gs

LT

14

what ETEC toxin increases cGMP in the apical membranes of the host gut mucosa

ST

15

what inhibits the 60s subunits in human cells and inhibits the human cell protein production and causes death

Shigga Toxin (EHEC)

16

stacked brick intestinal adhesion is characteristic of what bacteria

EAEC enteroaggregative e.coli

17

aspergliomas usually occur in what lung lobe

the upper one

18

thick walled spherules packed with endospores is indicative of

Coccidies immitis

19

agar for Cocciodies Immitis

Sabourad Agar

20

small oval yeast inside macrophages is seen in ( smaller then an RBC)

Histoplasma

21

ribbon like hyphae with rare separations . wide angles

Rhizupus

22

spiral shaped gram - spirochete

T. Palladium ( so thin it cannot be seen on gram stain)

23

what test is used to see t. palladium

dark field light microscopy

24

painful ulcer (chancroid) with regional lymphadenopathy is seen in what bacteria

Haemophillus Ducreyi

25

hematin ( factor X) is on a medium that test for

Copyright (c) UWorld, Please do not save, print, cut, copy or paste anything while a test is active.

26

retro-orbital pain, epistaxis, melena, headache, joint and muscle pain and fever are signs of

dengue Fever

27

aedes mosquito causes what two thing

Chickungunya and Dengue Fever

28

partially ds circular DNA molecule in a capsid

HEP B

29

oxidase positive non lactose fermenting gram negative rod that causes UTI in patients with indwelling catheters

pseudommonas

30

lactose fermenting gram negative rod that causes UTI

e. Coli