Evaluation of a laboratory system intended for use in physicians' offices. II. Reliability of results produced by health care workers without formal or professional laboratory training

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Abstract
The Kodak DT-60 tabletop chemistry analyzer was evaluated with standardized protocols to determine the system''s precision and accuracy when operated by four volunteers (a secretary, a licensed practical nurse, and two family medicine residents) in a simulate office laboratory. The variability of the results was found to be significantly greater than the variability of results produced by medical technologists who analyzed the same samples during the same study period with another DT-60 placed in the hospital laboratory. The source(s) of increased variance needs to be identified so the system can be modified or new control procedures can be developed to ensure the reliability of results used in patient care. Prospective purchasers, manufacturers, and patients need this kind of objective information about the reliability of results produced by systems intended for use in physicians'' office laboratories.