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Bacteriology
Mycobacteria
Mycobacterium avium-intracellulare, scrofulaceum and marinum
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Created by
Clare Njoroge
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Cards (33)
Which mycobacterium is referred to as MAC?
Mycobacterium avium intracellulare
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What does "scrufulasium" refer to?
Mycobacterium scrofulaceum
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What does "marinum" refer to?
Mycobacterium
marinum
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What setting is the scene taking place in?
A
zoo
park
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What does "aviary" sound like in relation to mycobacterium?
It sounds like
avium
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What does the bubbling acid pond represent?
Acid fast
characteristic
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What does the microphone symbolize in the study material?
Presence of
mycolic acid
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What is the appearance of mycobacterium under an acid-fast stain?
Red
appearing organisms
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What does the band-aid on the character's hand represent?
MAC causes disease in
AIDS
patients
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What does the structure of the aviary resemble?
The
lymphatic system
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What does the heat lamp symbolize in the study material?
MAC causes
fever
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What does the sweaty guy on the zipline represent?
MAC causes
night sweats
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What does the skinny guy on the zipline symbolize?
MAC causes
weight loss
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What does the map of the United States on the shirt represent?
Number 50
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What does "zip" sound like in relation to antibiotics?
Azithromycin
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When is azithromycin given prophylactically?
When
CD4
count is less than
50
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Why are MAC infections common among HIV patients?
CD4 count drops below
50
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What does the pill container represent?
MAC is often
resistant
to multiple drugs
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Who does mycobacterium scrofulaceum commonly affect?
Children
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What does the beaded net held by the child represent?
The
lymphatic system
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What does the child's neck region signify?
Cervical region
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What does mycobacterium scrufulasium cause in children?
Cervical lymphadenitis
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What does the marine worker's injury represent?
Mycobacterium causes
hand infections
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What are the symptoms of the patient in the review question?
Weight loss
,
fever
,
swollen
neck lump
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What does the tissue aspirate reveal in the patient case?
Acid-fast bacilli
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What is the likely CD4 count for the patient with HIV?
43
cells per microliter
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Why is mycobacterium scrufulasium less likely in the patient case?
It is more common in
children
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What does the presence of HIV indicate in relation to MAC?
Increased
likelihood of MAC
infection
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What is the significance of the CD4 count being below 50?
It indicates high risk for
MAC
infections
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What are the key characteristics of Mycobacterium avium intracellulare (MAC)?
Acid fast
Causes disease in
AIDS patients
Causes
lymphadenitis
Causes
fever
Causes
night sweats
Causes weight
loss
Prophylactic
azithromycin
when
CD4
< 50
Often resistant to
multiple drugs
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What are the key characteristics of Mycobacterium scrufulasium?
Commonly affects
children
Causes
cervical lymphadenitis
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What are the key characteristics of Mycobacterium marinum?
Causes
hand infections
in
aquarium
handlers
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What are the symptoms and findings in the patient case study?
Weight loss
Fever
Swollen cervical lymph node
Acid-fast bacilli
in aspirate
CD4
count likely <
50
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