Remember1

Question 1

What is the correct order of gram-stain procedure?

Answer 1

1. Crystal Violet
2. Iodine
3. Alcohol (decolarize)
4. Safranin

Question 2

Which mycobacteria are photochromagenic?

Answer 2

• M. marinum
• M. kansasii

(turn light yellow when exposed to light)

Question 3

Mycobacteria: Rapid Growing. (4)

*How many days

Answer 3

• Abcessus
• Fortuitum
• Chelonae
• Mucogenicum

*7 days

Question 4

Mycobacteria szulagai - Temperature:

• Scotochromagin
• Photochromagin

Answer 4

• 25C (Scotochromagin)

- 37C (Photochromagin)

Question 5

M. tuberculosis - Gram stain characteristic.

Answer 5

Cording

Question 6

Mycobacteria: Kid with unilateral cervical lymphadenitis.

Answer 6

M. scrofula

Question 7

What bacteria shows a “Double Zone Beta Hemolysis”?

Answer 7

Clostridium perfringes

Question 8

What organism is the usual cause of botryomycosis*?

Answer 8

S. aureas

*rare chronic bacterial granulomatous disease that usually involves skin

Question 9

What is the MOA of fluoroquinolones?

Answer 9

Inhibition of DNA Topoisomerase

Question 10

What organ is most susceptible to Anaerobic Abscesses?

Answer 10

Brain

Question 11

What staphylococcus is Novobiocin Resistant?

Answer 11

S. saprophyticus

Question 12

Enterococcus Vs. other bacteria.

Answer 12

6.5% NaCl tolerant (Enterococcus)

Question 13

Bartonella Henselae stain.

Answer 13

Warthin-Starry (silver impregnation technique)

Question 14

What Mycobacteria is commonly a contaminant?

Answer 14

M. gordonae (found in tap water)

Question 15

Who has increased susceptibility to Neisserial infections?

-What is the best initial screen

Answer 15

Deficiency of terminal complement factors (C5-C9)

-CH50 (best initial screen)