Clinical Mycobacteriology 1/10/17 TEST #1 Hanson

Question 1

What do you find in the cell wall of mycobacteria?

Answer 1

• High lipid content
• Mycolic acids
• Lipoarabinomannan
• Waxy coat

Question 2

Mycobacteria are aerobes or anaerobes?

Answer 2

• Obligate Aerobes

Question 3

T/F

Mycobacteria are Acid fast bacilli

Answer 3

True

Question 4

What are the important mycobacteria in Tuberculous Mycobacteria?

Answer 4

• M. Tuberculosis (MTB)
• M. africanum
• M. bovis
• M. Bovis Bacille Calmette-Guerin (BCG)

Question 5

What are the slow growers in non-tuberculous mycobacteria?

Answer 5

-M. kansasii
-M. avium-intracellulare
-M. marinum
M. scrofulaceum

Question 6

What are the rapid growers in non-tb mycobacteria?

Answer 6

• M. chelonae-abscessus

- M. fortuitum

Question 7

What are the special growers in non-tb mycobacteria?

Answer 7

-M. leprae

Question 8

How does transmission of TB occur?

Answer 8

-Respiratory

Question 9

What is the calcified granuloma of TB called?

Answer 9

-Ghon complex

Question 10

When you receive a TB test what do you measure?

Answer 10

-The induration size

Question 11

What is one of the earliest signs of active TB?

Answer 11

-Cough with production of sputum as tissue necrosis progresses

Question 12

If you have a fever and weight loss reflecting systemic actions do you have active or inactive TB?

Answer 12

-Active

Question 13

What are two types of active TB found in a lung radiograph?

Answer 13

• Cavitary TB

- Milliary TB

Question 14

Why do you want to differentiate between active and latent TB?

Answer 14

-Treatment

Question 15

What Runyon classification is photochromogens?

Answer 15

-Runyon I

Question 16

What Runyon classification are Rapid Growers?

Answer 16

-Runyon IV

Question 17

What Runyon classification are Scotochromogens?

Answer 17

-Runyon II

Question 18

What Runyon classification are nonchromogenic?

Answer 18

-Runyon III

Question 19

What organisms are in Runyon I?

Answer 19

• M. Kansasii

- M. marinum

Question 20

What organisms are in Runyon II?

Answer 20

-M. Scrofulaceum

Question 21

What organisms are in Runyon III?

Answer 21

-M. avium-intracellulare

Question 22

What organisms are in Runyon IV?

Answer 22

• M. foruirum

- M. chelonae-abscess

Question 23

What two Runyon classes have no pigment?

Answer 23

• III

- IV

Question 24

What Runyon classification has yellow-orange pigment in light and dark?

Answer 24

-II

Question 25

What Runyon classification has yellow-orange pigment only when exposed to light?

Answer 25

-I

Question 26

What differentiates between Runyon III and IV?

Answer 26

-Colonies in 5 days in IV vs slow growth in III

Question 27

M. marinum is what type of chromogen?

Answer 27

-Photochromogen

Question 28

How can you get M. marinum?

Answer 28

-traumatized skin in contact with water

Question 29

What is cervical lymphadenitis called?

Answer 29

-Scrofula

Question 30

Who is Scrofula or cervical lymphadenitis common in?

Answer 30

-Children

Question 31

What two mycobacterium diseases spread from person to person?

Answer 31

• MTB

- Leprosy

Question 32

What is the transmission of NTM?

Answer 32

-Environmental exposures