NTM Flashcards
which NTM is most likely MDR?
M. avium complex (MAC)
how is NTM transmitted?
from the environment
what is the NTM reservoir?
environment
is NTM transmitted person-to-person?
no
what age group is most susceptible to NTM infx?
elderly
what are key risk factors for NTM infx?
immunosuppression and underlying disease
can NTM induce a positive PPD skin test?
yes, but weakly
importance of >15mm in normal people
does NTM normally cause disease in immunocompetent persons?
no
is M. kansasii a fast or slow grower?
slow grower
is M. avium (MAC) a fast or slow grower?
slow grower
is M. fortuitum a fast or slow grower?
fast grower
is M. abscessus a fast or slow grower?
fast grower
is M. chelonae a fast or slow grower?
fast grower
is M. massiliense a fast or slow grower?
fast grower
is M. bolletii a fast or slow grower?
fast grower
where is M. kansasii found?
water supplies
in what geographical region is M. kansasii common?
Midwest US
is M. kansasii contagious?
minimally
where is MAC found?
ubiquitous in environment
in what geographical region is M. kansasii common?
Southeastern US
in what epidemiological group is M. kansasii usually seen?
older white males with underlying lung disease
if you see a weakly positive PPD in an older white male with chronic lung disease, presenting with TB like symptoms, what is a non-MTB cause?
MAC
In HIV patients, what is the most common bacterial infx?
MAC
what does hepatosplenomegaly and elevated liver enzymes in an HIV pt presenting with flu like symtoms possibly indicate? (assuming bacterial etiology is indicated)
MAC infx (via GIT)
what NTM is common in accidental wound trauma and surgical procedures (especially prosthetic implants)?
fortuitum complex (rapid growing NTM agents)
so a woman recovering from breast cancer gets implants. Within a week, she has disseminated infx involving skin, soft tissue, bone, and LRT. Besides the typical HAP agents, what might’ve caused the infx?
fortuitum complex (rapid growing NTM agents)
what NTM agent is susceptible to alkaline glutaraldehyde, and a low susceptibility to high level disinfectants?
fortuitum complex (rapid growing NTM agents)
what phylogenetic level does the lab have to specify, pertaining to NTM agents?
species level
is there any specific NTM treatment listed in the notes?
nope, fuckin nothing
