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MTB growth characteristics and morphology
Learning ObjectivesDescribe growth and morphology of MTB in MGIT culture
In liquid medium, M. tuberculosis appears as granular or flaky growth, while most NTM form uniform slight turbidity (except M. kansasii).
M. tuberculosis forms typical clumps and serpentine cords, while other mycobacteria appear as loose, smaller clumps and cording or single cells. M. kansasii may be difficult to differentiate as it is morphologically closer to M. tuberculosis.
Resource
Mycobacteriology Laboratory Manual
- Assessment
Question 1 |
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Answer 2 |
Answer 3 |
Answer 4 |
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Correct Explanation |
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In a liquid medium, M. tuberculosis appears as granular or flaky growth. |
True |
False |
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True |
In a liquid medium, M. tuberculosis appears as granular or flaky growth. |
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Yes |
Yes |
Question 2 |
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M. tuberculosis forms typical clumps and serpentine cords. |
True |
False |
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True |
M. tuberculosis forms typical clumps and serpentine cords. |
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Yes |
Yes |
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