Slow Growing Mott Drug Susceptibility Test

The AFB Anti Biogram - Slow Growing MOTT Drug Susceptibility Test is a specialized microbiology test performed to determine the antibiotic susceptibility of slow-growing Mycobacteria Other Than Tuberculosis (MOTT), also known as Non-Tuberculous Mycobacteria (NTM). These organisms can cause infections in the lungs, skin, soft tissues, and other parts of the body, particularly in individuals with weakened immune systems or chronic lung disease. By identifying which antimicrobial drugs are effective against the isolated organism, this test helps clinicians select the most appropriate treatment for the infection.

Who should get this test done?

This test may be recommended for individuals who:

●     Have a confirmed infection caused by slow-growing non-tuberculous mycobacteria (NTM).

●     Experience persistent respiratory or soft tissue infections that require further microbiological evaluation.

●     Have recurrent mycobacterial infections despite ongoing treatment.

●     Need antibiotic susceptibility testing after a slow-growing MOTT has been isolated in culture.

●     Are undergoing treatment for NTM infection and require guidance for selecting effective antimicrobial therapy.

Why consider this test?

Not all non-tuberculous mycobacteria respond to the same antibiotics. In fact, different species—and even different strains—may have varying susceptibility patterns. The AFB Anti Biogram - Slow Growing MOTT Drug Susceptibility Test helps identify which antimicrobial agents are likely to be effective against the isolated organism. This information supports targeted treatment, avoids the unnecessary use of ineffective medications, and assists healthcare providers in developing an appropriate management plan based on the susceptibility profile.

More information

This test is performed after a slow-growing non-tuberculous mycobacterium (MOTT/NTM) has been successfully isolated through culture. The organism is exposed to a panel of antimicrobial agents under controlled laboratory conditions to evaluate its susceptibility. Since treatment recommendations differ depending on the species and its drug response pattern, this test is an important component of the laboratory evaluation of NTM infections and is interpreted alongside culture identification, clinical findings, and the patient’s medical history.

Other names

●     Slow Growing NTM Drug Susceptibility Test

●     Non-Tuberculous Mycobacteria (NTM) Drug Susceptibility Test

●     MOTT Antibiogram

●     AFB Drug Susceptibility Test for Slow-Growing Mycobacteria

●     Slow Growing Mycobacterial Antimicrobial Susceptibility Test