Acid-fast staining of a smear prepared from a digested sputu…

Acid-fast staining of a smear prepared from a digested sputum showed slender, slightly curved, beaded, red mycobacterial rods. Growth on Middlebrook 7H10 slants produced buff-colored microcolonies with a serpentine pattern after 14 days at 37 degrees Celsius. Niacin and nitrate reduction tests were positive. What is the most probable presumptive identification?

In this type of antimicrobial susceptibility test, a McFarla…

In this type of antimicrobial susceptibility test, a McFarland 0.5 standardized suspension of bacteria is swabbed over the surface of a Mueller-Hinton agar plate, and paper disks containing single concentrations of each antimicrobial agent are placed onto the inoculated surface.  What is the name of this test?