NTM

Question 1

which NTM is most likely MDR?

Answer 1

M. avium complex (MAC)

Question 2

how is NTM transmitted?

Answer 2

from the environment

Question 3

what is the NTM reservoir?

Answer 3

environment

Question 4

is NTM transmitted person-to-person?

Answer 4

no

Question 5

what age group is most susceptible to NTM infx?

Answer 5

elderly

Question 6

what are key risk factors for NTM infx?

Answer 6

immunosuppression and underlying disease

Question 7

can NTM induce a positive PPD skin test?

Answer 7

yes, but weakly

importance of >15mm in normal people

Question 8

does NTM normally cause disease in immunocompetent persons?

Answer 8

no

Question 9

is M. kansasii a fast or slow grower?

Answer 9

slow grower

Question 10

is M. avium (MAC) a fast or slow grower?

Answer 10

slow grower

Question 11

is M. fortuitum a fast or slow grower?

Answer 11

fast grower

Question 12

is M. abscessus a fast or slow grower?

Answer 12

fast grower

Question 13

is M. chelonae a fast or slow grower?

Answer 13

fast grower

Question 14

is M. massiliense a fast or slow grower?

Answer 14

fast grower

Question 15

is M. bolletii a fast or slow grower?

Answer 15

fast grower

Question 16

where is M. kansasii found?

Answer 16

water supplies

Question 17

in what geographical region is M. kansasii common?

Answer 17

Midwest US

Question 18

is M. kansasii contagious?

Answer 18

minimally

Question 19

where is MAC found?

Answer 19

ubiquitous in environment

Question 20

in what geographical region is M. kansasii common?

Answer 20

Southeastern US

Question 21

in what epidemiological group is M. kansasii usually seen?

Answer 21

older white males with underlying lung disease

Question 22

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?

Answer 22

MAC

Question 23

In HIV patients, what is the most common bacterial infx?

Answer 23

MAC

Question 24

what does hepatosplenomegaly and elevated liver enzymes in an HIV pt presenting with flu like symtoms possibly indicate? (assuming bacterial etiology is indicated)

Answer 24

MAC infx (via GIT)

Question 25

what NTM is common in accidental wound trauma and surgical procedures (especially prosthetic implants)?

Answer 25

fortuitum complex (rapid growing NTM agents)

Question 26

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?

Answer 26

fortuitum complex (rapid growing NTM agents)

Question 27

what NTM agent is susceptible to alkaline glutaraldehyde, and a low susceptibility to high level disinfectants?

Answer 27

fortuitum complex (rapid growing NTM agents)

Question 28

what phylogenetic level does the lab have to specify, pertaining to NTM agents?

Answer 28

species level

Question 29

is there any specific NTM treatment listed in the notes?

Answer 29

nope, fuckin nothing