Special Mediums

Question 1

Anaerobes

Answer 1

thioglycolate

Question 2

legionella

Answer 2

charcoal-yeast extract agar (selective)

Question 3

corynebacterium

Answer 3

• loafer’s coagulated serum medium (S)

- tellurite agar (D)

Question 4

enteric bacteria

Answer 4

• eosin methylene blue (D) e.coli turn lime green

- MacConkeys (D and S)

Question 5

chocolate agar

Answer 5

neisseria from normally sterile sites, haemophilus

Question 6

thioglycolate

Answer 6

anaerobes

Question 7

loafer’s coagulated serum medium

Answer 7

S for corynebacterium

Question 8

enteric pathogens

Answer 8

• Hektoen enteric agar (D)

- Xylose-lysine-deoxycholate agar

Question 9

charcoal-yeast extract agar (selective)

Answer 9

Legionella

Question 10

MacConkeys agar

Answer 10

differential and selective for enteric bacteria

Question 11

tellurite agar

Answer 11

D for corynebacterium

Question 12

vibrio cholerae

Answer 12

(likes alkaline growth medium)

- TCBS (thiosulfate citrate bile salts sucrose agar) (S)

Question 13

mycobacterium

Answer 13

lowenstein-jensen medium (S)

Question 14

eosin methylene blue

Answer 14

Differential for enteric bacteria

Question 15

neisseria from sites with normal flora

Answer 15

thayer-martin selective medium (S)
* thayer-martin = chocolate agar supplemented with vancomycin, nystatin and colistin to inhibit the normal flora including nonpathogenic neisseria

Question 16

mycoplasma require

Answer 16

cholesterol and purines and pyrimidines

Question 17

What requires cysteine to grow?

Answer 17

• francisella, brucella, legionella, pasteurella

* the 4 sisters “ella” worship in the cysteine chapel*

Question 18

What does haemophilus (influenzae and aegypticus) require?

Answer 18

X (protoporphyrin aka heme) and V (NAD); both found in blood