Microbiology

Question 1

MT media is used for what organisms?

Answer 1

N. gonorrhoea and N. meningitidis

Question 2

the primary habitat for plesiomonas shigelloides is?

Answer 2

fresh water

Question 3

the tube coagulase detects what?

Answer 3

extracellular coagulase

Question 4

the slide coagulase detects what type of coagulase?

Answer 4

bound form or clumping factor

Question 5

Erythrogenic toxin, hyaluronidase, and hemolysins S and O are extracellular products of:

Answer 5

S. pyogenes

Question 6

What organism is optichin resistant, PYR negative, Bile solubility negative, catalase negative?

Answer 6

Viridans strep

Question 7

What organism will grow ONLY on a culture media that has been supplemented with either cysteine or cystine?

Answer 7

Francisella tularensis

Question 8

Glomerulonephritis and rheumatic fever are sequelae that may follow with infection from what organism?

Answer 8

Group A streptococci

Question 9

an organism that shows a positive modified oxidase test?

Answer 9

micrococcus

Question 10

Blood cultures are best used to isolate what organisms?

Answer 10

fungi and acid fast organisms

Question 11

What is CNA (columbia colistin nalidixic acid) agar best to isolate?

Answer 11

Selects for gram positive Cocci

Question 12

Lowenstein jensen and middle brook 7H10 best isolates what organisms?

Answer 12

mycobacterium sp.

Question 13

On cystine-Tellurite agar (Tinsdale) this organism produceds black colonies?

Answer 13

C. diptheriae

Question 14

Beta-naphthylamine is used in what test?

Answer 14

PYR

Question 15

What organism causes nongonococcal urethritis?

Answer 15

Ureaplasma urealyticum

Question 16

Thiosulfate citrate bile salts best isolates what organism?

Answer 16

Vibrio

Question 17

A helically curved organism with hooked ends that exhibits corkscrew motility?

Answer 17

Leptospira

Question 18

anaerobic gram negative bacillius that produces brown-black colonies

Answer 18

B. fragilis

Question 19

Media with kanamycin, vancomycin laked blood is best for which organism?

Answer 19

B. fragilis

Question 20

What media contains NAD and is necessary for the growth of Haemophilus spp.?

Answer 20

Chocolate

Question 21

Which media is the best choice to selectively isolate C. difficile?

Answer 21

cycloserine-cefotoxin fructose egg yolk agar (CCFA)

Question 22

Which plasmodia species do you see band forms in?

Answer 22

P. malariae

Question 23

Which plasmodia species doe you see ring forms and gametocytes? It also causes blackwater fever.

Answer 23

P. falciparum

Question 24

The CIN agar is selective media for these organisms?

Answer 24

Yersinia, Aeromonas and plsiomonas shigelloides

Question 25

BCYE (buffered charcoal yeast agar) is selective for which organim?

Answer 25

Legionella

Question 26

This organism produces sulfur granules and has a molar tooth apperance, gram positive branching rods?

Answer 26

Actinomyces

Question 27

Double zone of hemolysis, Production of Lecithinase

Answer 27

Clostridium perfringens

Question 28

colonies appear as a fried egg?

Answer 28

Mycoplasma/Ureaplasma

Question 29

Infantile diarrhea

Answer 29

rotavirus

Question 30

Which trematode lives in the small intestines?

Answer 30

Fasciola

Question 31

Which virus causes fifths disease?

Answer 31

parvovirus B-19

Question 32

Dimorphic fungi with a broad base and a double wall that demonstrates a "lollipop" form?

Answer 32

Blastomyces dermatitidis

Question 33

Silver stain is used for what fungal organism?

Answer 33

Pneumocystis jaravochi

Question 34

this is known as the dog tapeworm?

Answer 34

Dipylidium caninum

Question 35

This is know as the fish tapeworm?

Answer 35

Diphyllobothrium latum

Question 36

Hydatid tapworm very small sheep are the host

Answer 36

echinococcus granulosus

Question 37

Which group of tests differentiate Acinetobacter baumanii and Psuedomonas aeruginoas

Answer 37

Oxidase, motility, NO3 reduction

Question 38

Smooth wall club shaped macroconidia

Answer 38

E. floccosum

Question 39

digestion and decontaminiation is done with what?

Answer 39

NALC-NaOH