Clinical Mycobacteriology 1/10/17 TEST #1 Hanson Flashcards
What do you find in the cell wall of mycobacteria?
- High lipid content
- Mycolic acids
- Lipoarabinomannan
- Waxy coat
Mycobacteria are aerobes or anaerobes?
- Obligate Aerobes
T/F
Mycobacteria are Acid fast bacilli
True
What are the important mycobacteria in Tuberculous Mycobacteria?
- M. Tuberculosis (MTB)
- M. africanum
- M. bovis
- M. Bovis Bacille Calmette-Guerin (BCG)
What are the slow growers in non-tuberculous mycobacteria?
-M. kansasii
-M. avium-intracellulare
-M. marinum
M. scrofulaceum
What are the rapid growers in non-tb mycobacteria?
- M. chelonae-abscessus
- M. fortuitum
What are the special growers in non-tb mycobacteria?
-M. leprae
How does transmission of TB occur?
-Respiratory
What is the calcified granuloma of TB called?
-Ghon complex
When you receive a TB test what do you measure?
-The induration size
What is one of the earliest signs of active TB?
-Cough with production of sputum as tissue necrosis progresses
If you have a fever and weight loss reflecting systemic actions do you have active or inactive TB?
-Active
What are two types of active TB found in a lung radiograph?
- Cavitary TB
- Milliary TB
Why do you want to differentiate between active and latent TB?
-Treatment
What Runyon classification is photochromogens?
-Runyon I
What Runyon classification are Rapid Growers?
-Runyon IV
What Runyon classification are Scotochromogens?
-Runyon II
What Runyon classification are nonchromogenic?
-Runyon III
What organisms are in Runyon I?
- M. Kansasii
- M. marinum
What organisms are in Runyon II?
-M. Scrofulaceum
What organisms are in Runyon III?
-M. avium-intracellulare
What organisms are in Runyon IV?
- M. foruirum
- M. chelonae-abscess
What two Runyon classes have no pigment?
- III
- IV
What Runyon classification has yellow-orange pigment in light and dark?
-II
What Runyon classification has yellow-orange pigment only when exposed to light?
-I
What differentiates between Runyon III and IV?
-Colonies in 5 days in IV vs slow growth in III
M. marinum is what type of chromogen?
-Photochromogen
How can you get M. marinum?
-traumatized skin in contact with water
What is cervical lymphadenitis called?
-Scrofula
Who is Scrofula or cervical lymphadenitis common in?
-Children
What two mycobacterium diseases spread from person to person?
- MTB
- Leprosy
What is the transmission of NTM?
-Environmental exposures
