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The customer reported to siemens they obtained an erroneously depressed sodium (na) result on one (1) patient sample on a dimension exl with lm integrated chemistry system.The erroneously depressed result was reported to the physician and questioned.The same sample was reprocessed on the original dimension exl with lm integrated chemistry system and on an alternate dimension exl with lm integrated chemistry system.Higher results were obtained on both systems, considered correct, and reported to the physician.A different sample from the same patient was drawn and tested on the original dimension exl with lm integrated chemistry system.Higher results were obtained, considered correct, and reported to the physician.There is no known reports of patient intervention or adverse health consequences due to the erroneously depressed sodium (na) result.
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