Random Micro facts

Question 1

Giemsa

Answer 1

Chlamydia, Borrelia, Rickettsiae, Trypanosomes, Plasmodium

“Certain bugs really try my patience”

Question 2

PAS

Answer 2

Glycogen & Mucopolysaccharides

Whipple disease

Question 3

Ziehl Neelsen (carbol fuchsin)

Answer 3

Acid fast

Nocardia & Mycobacterium

Question 4

India Ink

Answer 4

Cryptococcus neoformans

mucicarmine stains capsule red

Question 5

Silver Stain

Answer 5

Fungi (Pneumocystis)
Legionella
H. pylori

Question 6

Chocolate agar w/ V (NAD+) and X (hematin)

Answer 6

H. influenzae

Question 7

Thayer Martin VPN

Answer 7

Vanco, Polymyxin, Nystatin

N. gonorrhoeae and meningitidis

Question 8

Bordet Genou (potato)

Answer 8

B. Pertussis

Question 9

Tellurite agar, Loffler medium

Answer 9

C. diphtheriae

Question 10

Lowenstein Jensen agar

Answer 10

M. tuberculosis

Question 11

Eaton agar + cholesterol

Answer 11

M. pneumoniae

Question 12

Pink colonies on MacConkey agar

Answer 12

Lactose fermenting enterics - E. coli

Question 13

Eosin-methylene blue - colonies w/ green metallic sheen

Answer 13

E. coli

Question 14

Charcoal yeast extract agar buffered with cysteine and iron

Answer 14

Legionella

Question 15

Sabouraud agar

Answer 15

Fungi

Question 16

Catalase + organisms

Answer 16

PLACESS - NADPH oxidase def

Pseudomonas, Listeria, Aspergillus, Candida, E. coli, S. aureus, Serratia

Question 17

Urease-positive bugs

Answer 17

Cryptococcus 
H pylori
Proteus
Ureaplasma
Nocardia 
Klebsiella
S epidermidis 
S saprophyticus

Question 18

Yellow sulfur granules

Answer 18

ACtinomyces israelii

Question 19

Yellow pigment

Answer 19

S. aureus

Question 20

Blue/green pigment

Answer 20

Pseudomonas

Question 21

Red pigment

Answer 21

Serratia marcescens

Question 22

Protein A

Answer 22

S. Aureus - binds Fc region of IgG

Question 23

IgA protease

Answer 23

S. pneumo, H influenzae B, Neisseria

Question 24

M protein

Answer 24

Group A strep - prevents phagocytosis