Sections 493.821 to 493.865 set, for each specialty and subspecialty, what the laboratory must do with the PT challenges and how performance is scored. Bacteriology, mycobacteriology, mycology, parasitology and virology laboratories must identify organisms, and for bacteriology perform susceptibility testing, to the extent they do for patients, with a passing score of 80 percent per event (90 percent for ABO grouping and D typing, and 100 percent for compatibility testing in immunohematology); syphilis serology and general immunology, routine chemistry, endocrinology, toxicology and hematology analytes are scored against the program's target values and acceptance limits with 80 percent required; and gynecologic cytology is tested at the individual level with a passing score of 90 percent and remedial action and retesting for individuals who fail. A laboratory that fails to attain the passing score in two of three consecutive events, or fails an event with a score of zero for nonparticipation, has participated unsuccessfully for that specialty, subspecialty or analyte and is subject to the consequences in sections 493.803 and 493.807. The laboratory must report PT results for each challenge the way it would report a patient result, including reporting organism identification to its routine level.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.