Processor Performance - Daily QC Tests
Citation:
900.12(e)(1)(i),(ii),(iii): Daily quality control tests. Film processors used to develop mammograms shall be adjusted and maintained to meet the technical development specifications for the mammography film in use. A processor performance test shall be performed on each day that clinical films are processed before any clinical films are processed that day. The test shall include an assessment of base plus fog density, mid-density, and density difference, using the mammography film used clinically at the facility.
(i) The base plus fog density shall be within +0. 03 of the established operating level.
(ii) The mid-density shall be within ±0.15 of the established operating level.
(iii) The density difference shall be within ±0.15 of the established operating level.
Approved Alternative Standard:
Questions:
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In which situations should facilities establish new processor operating levels?
- During the time a facility is establishing new processor operating levels (typically done by performing a five-day data plot average): A) does the facility continue to plot the data on the processor chart?; B) Is the facility exempt from having to stay within the old processor action limits during the five-day averaging period?